CN-E-02: PRC Cross-Strait Policy in 2025 — Strait Thunder-2025A/B, Lai's "Foreign Hostile Force" Designation, and Trump-2 Bargaining

1. Key Takeaways

• PRC cross-strait policy in 2025 represents the consolidation of the post-Pelosi coercion architecture into a normalised, year-round "five-year strategic grey-zone pattern" — exercise tempo, CCG cordon-building, cyber and cable operations, cognitive warfare, and economic coercion now operate continuously rather than as discrete reactive episodes. The Joint Sword-2024A (23–24 May 2024, post-Lai inauguration), Joint Sword-2024B (14 October 2024, post-Lai National Day), and the unnamed December 2024 ninety-warship deployment together established a cycle in which named exercises punctuated a continuous baseline of median-line-crossing, ADIZ-incursion, CCG patrol, and information operations. The 1–2 April 2025 Strait Thunder-2025A exercise (海峡雷霆-2025A) was, in this reading, neither a discrete crisis nor a return to the pre-2022 baseline; it was the first named exercise of 2025 layered atop a 365-day, four-pillar coercion posture. Taiwan MND's daily PLA-activity press releases recorded median-line crossings on virtually every operational day of Q1 2025; PLA aircraft sortie totals for the first quarter exceeded [TBD-VERIFY: ROC MND end-of-quarter compilation cited "more than 1,500 sorties" in Q1 2025; CSIS ChinaPower parallel dataset is yet to publish a reconciled quarterly figure]. The doctrinal innovation of 2025 is the formal absorption of a continuous grey-zone tempo into a five-year strategic posture that pairs sustained coercion with the ability to spike on cue.

• The 13 March 2025 Lai Ching-te press conference designating the People's Republic of China as a "foreign hostile force" (境外敵對勢力) under Article 2-2 of the Anti-Infiltration Act was the most consequential ROC cross-strait policy announcement since the Lai inauguration of 20 May 2024. Speaking at the Presidential Office, Lai announced seventeen national-security strategies addressing five threat categories — PRC sovereignty erosion, military intimidation, infiltration of Taiwan society, economic coercion, and cognitive warfare — alongside ten implementation measures. The ten measures included reinforced scrutiny of PRC entertainers, influencers, and "China-related" cultural content operating in Taiwan (a response to documented PRC-aligned influencer recruitment); reinforced loyalty affirmations for ROC military veterans (responding to documented retired-officer recruitment by PRC intelligence services); review of "China-affinity" programmes in Taiwan's schools and universities; enforcement of citizenship-renunciation requirements for individuals holding both PRC and ROC household registration (a long-dormant statutory requirement under the Cross-Strait Act); and tightened oversight of cross-strait exchange permits for PRC-affiliated bodies. The "foreign hostile force" designation is statutorily significant because it triggers expanded application of the 2020 Anti-Infiltration Act's offence framework. The 13 March speech crystallised the post-inauguration trajectory from Lai's 20 May 2024 "互不隸屬" (mutually non-subordinate) inaugural formulation, through the 10 October 2024 National Day "1949 thesis," to a formal legal categorisation of the PRC.

• Strait Thunder-2025A (海峡雷霆-2025A) of 1–2 April 2025 was a two-day surprise exercise that bypassed the conventional 24–48-hour pre-announcement window and was framed by the Eastern Theater Command as a direct response to Lai's 13 March speech. Senior Captain Shi Yi (施毅), Eastern Theater Command spokesperson, announced the exercise on the morning of 1 April 2025 via the Eastern Theater Command's Weibo account, designating the operation as a "joint exercise" of army, navy, air, and rocket forces under Eastern Theater Command direction (commander General Lin Xiangyang, 林向阳). The exercise's stated objectives were "joint seizure of comprehensive superiority, joint strikes on maritime and ground targets, and blockade and control of key areas and sea routes" — language drawn directly from the Joint Sword-2024B announcement. ROC MND tracked nineteen PLA Navy warships and seventy-one PLA aircraft on 1 April; on 2 April the tracking rose to seventy-six PLA aircraft. The 2 April Eastern Theater Command poster — depicting Lai as a green-coloured "parasite" being squeezed by chopsticks — set a new floor for the operational tone of PRC information accompaniment to military activity, drawing condemnation from the U.S. State Department, the European External Action Service, and seven G7 capitals. Unlike Joint Sword-2024A and 2024B, Strait Thunder-2025A was named with the "Strait Thunder" (海峡雷霆) brand rather than the "Joint Sword" (联合利剑) brand — a brand-management decision that PLA analysts (CSIS's Brian Hart, ASPI's Malcolm Davis) read as a deliberate signalling step indicating that 2025 exercises would adopt new operational concepts emphasising precision-strike and blockade capability over the broader "encirclement" framing of 2024.

• The China Coast Guard's Fujian (Eastern) flotilla, under the public spokesmanship of Liang Wei (梁伟), has emerged in 2025 as the executive arm of a sustained "law-enforcement" posture intended to formalise PRC jurisdictional claims around Taiwan's offshore islands and within the Strait itself. Following the February 2024 Kinmen capsize incident (covered in CN-E-01) and the March 2024 boarding of the Taiwanese tourist boat Wang Kuang-jiu (王光久), the CCG's 2025 posture has shifted from episodic incidents to a continuous patrol presence. Liang Wei's press statements of 25 February 2025 ("normal law-enforcement activities of the China Coast Guard in waters of the Taiwan Strait"), 29 March 2025 (announcement of expanded patrols around Matsu), and 1 April 2025 (coordinating CCG operations with Strait Thunder-2025A "to maintain order and protect the legitimate rights of compatriots") together articulate a CCG doctrine in which Taiwan-administered waters are treated as part of PRC "inland sea" jurisdiction. The CCG flotilla now operates Type 818 (modified Type 054A) and Type 818-class large cutters, plus Type 056 corvette derivatives, in patrols of two-to-five vessels around Matsu and Wuqiu. The CCG's role in Strait Thunder-2025A — operating both inside and outside the exercise box — was a deliberate fusion of military and law-enforcement signalling.

• The 24–25 April 2025 "Joint Combat Readiness Patrol" (联合战备警巡), announced by Eastern Theater Command spokesperson Senior Captain Li Xi (李熹), continued the pattern established in 2024 of unnamed, mid-tempo combined-arms operations that bridge the named exercise cycle. Joint Combat Readiness Patrols had been the modal PLA cross-strait operational format since 2023, occurring at intervals of approximately every three to four weeks and typically generating 30–50 PLA aircraft and 6–9 PLAN vessel tracks in a 24-hour cycle. The 24–25 April 2025 patrol was unusual in two respects: its scale (a reported 36 aircraft on 24 April and 32 on 25 April, with 8 PLAN vessels), and its timing three weeks after Strait Thunder-2025A but well before the May 20 Lai-anniversary window that PLA analysts had anticipated as a likely Strait Thunder-2025B trigger date. Rumours of a Strait Thunder-2025B exercise circulated in PRC-affiliated social media in late April 2025 but had not materialised by the end of May 2025; analysts (CSIS's Bonny Lin, INDSR's Hu Wei-jen) noted that the Geneva tariff framework of 12 May 2025 may have produced a temporary modulation of the exercise tempo.

• Q1 2025 cable-cut episodes — three separate incidents involving the Shunxin-39, the Hong Tai 168, and an April incident near Yonaguni — converged with cyber operations against ROC government and critical-infrastructure systems to constitute a continuous sub-threshold campaign against Taiwan's information backbone. The 3 January 2025 Shunxin-39 (順興39) incident involved a Cameroon-flagged, Hong Kong-linked vessel observed loitering over the Trans-Pacific Express (TPE) cable north of Keelung at the time of a Chunghwa Telecom outage; ROC Coast Guard was unable to intercept the vessel before it transited Japanese waters. The 25 February 2025 Hong Tai 168 incident involved a Togo-flagged vessel with eight PRC-national crew detained by ROC Coast Guard after damage to a Matsu-Taiwan cable; the captain was prosecuted under the Telecommunications Act and the Criminal Code's public-property destruction provisions. The April 2025 Yonaguni-adjacent incident damaged a TPE branch cable. Cyber operations attributed by Taiwan's National Security Bureau to PRC-aligned actors — including the Flax Typhoon and Volt Typhoon groups, both publicly designated by US Cyber Command and CISA — increased against ROC government ministries, the Central Election Commission, and Taiwan's critical-infrastructure operators (TSMC, Chunghwa Telecom, Far EasTone, and the Taiwan Power Company). The cable-cut campaign's plausible-deniability architecture (third-country flags, ambiguous loitering patterns, ship-to-ship transfers) is the maritime analogue of the cyber Volt Typhoon "living off the land" persistence model.

• Economic coercion in 2025 deepened with continued ECFA tariff-concession suspensions, the January 2025 antimony export-control tightening, sustained gallium and germanium controls, and renewed agricultural-import suspensions on Taiwan products. The PRC General Administration of Customs and the Ministry of Commerce maintained the May 2024 ECFA partial-suspension package (covering textiles, machinery, and additional petrochemical lines, on top of the December 2023 twelve-petrochemical suspension implemented 15 January 2024), and in January 2025 added export-licensing tightening on antimony — a critical input for ammunition primers and semiconductor production. The continuing gallium, germanium, and graphite controls (effective from 1 August 2023, with progressively narrower license issuance through 2024 and 2025) interacted with the BIS October 2022 / October 2023 / December 2024 semiconductor packages to produce a bilateral export-control architecture targeting advanced semiconductors and their materials inputs. PRC agricultural-import suspensions on Taiwan products — already including pomelos, mangoes, frozen fish, and processed-food categories — were maintained and in selected cases (some grouper exports) expanded. The economic-coercion tempo in 2025 is calibrated to remain below the threshold that would damage PRC industrial supply chains while imposing measurable costs on the Taiwan agricultural and petrochemical sectors.

• The Trump-2 administration's Taiwan and China policy in the first hundred days produced a tactical-bargaining framework that placed semiconductors and Taiwan tariff treatment within a broader US-China deal architecture, while preserving the formal "one China" position and continuing arms-sales authorisations. The 13 February 2025 Trump-Xi phone call (the first leader-level call of Trump-2) covered Ukraine, fentanyl, TikTok, and trade; White House and Xinhua readouts diverged on whether Taiwan was raised. The 3 March 2025 White House announcement of TSMC's additional US$100 billion Arizona investment commitment (with TSMC Chairman C.C. Wei standing alongside Trump) was framed by Trump as a "Taiwan stole our chip business" win; TSMC's actual financial commitment had been scaled and timed to address tariff exposure as well as US political optics. The 2 April 2025 "Liberation Day" tariff announcement set a 32 per cent reciprocal tariff on Taiwan; the 9 April 2025 90-day pause for non-China trading partners reduced this to a 10 per cent universal baseline, pending negotiation. The Department of Commerce / BIS opened a Section 232 national-security investigation into semiconductors on 1 April 2025, providing legal architecture for sector-specific chip tariffs. The chip-tariff-as-bargaining-chip framing was articulated in unattributed senior administration commentary and by USTR Jamieson Greer in early Senate Finance testimony.

• The Geneva US-PRC talks of 10–11 May 2025, led by Treasury Secretary Scott Bessent and USTR Jamieson Greer for the US and Vice Premier He Lifeng (何立峰) for the PRC, produced the 12 May 2025 Joint Statement framework rolling back the post-2 April tariff escalation: US tariffs on Chinese goods reduced from 145 per cent to 30 per cent (retaining the 20 per cent fentanyl tariff plus a 10 per cent reciprocal); PRC tariffs on US goods reduced from 125 per cent to 10 per cent; effective 14 May 2025 for an initial 90-day window. The Geneva framework left the underlying Section 232 semiconductor investigation untouched, preserved the BIS export-control architecture, and committed both sides to a 90-day negotiating window. Bessent's post-meeting press statements characterised the framework as a "pause to allow detailed sectoral negotiation"; He Lifeng's State Council Information Office briefing framed it as proof that "dialogue and consultation are the only correct path." Taiwan was not addressed in the Geneva Joint Statement, a deliberate Taiwanese-government and US-Taiwan-corporate readout (Reuters, FT) of which was that the chip-tariff and Taiwan-tariff cycle had not been resolved by Geneva and would re-enter the bargaining frame at the August 2025 deadline.

• Admiral Samuel Paparo's 9 April 2025 Senate Armed Services Committee testimony characterised the 2025 PLA tempo around Taiwan as "rehearsals, not exercises" — the sharpest INDOPACOM characterisation since Admiral Philip Davidson's 2021 "six years" testimony established the 2027 horizon. Paparo's testimony, delivered at the height of the post-Strait Thunder-2025A news cycle, included the specific observation that the PLA's 2024–2025 operations had degraded "the warning time" available to the US and allied forces in a Taiwan contingency from "weeks to days." The testimony reframed the public discussion of the "Davidson window" (the 2027 date that Admiral Davidson had introduced in his March 2021 testimony, citing Xi's directive to be able to take Taiwan by force by that year) from a forecasted decision-window to an operational rehearsal-window. CIA Director William Burns's 2 February 2023 Georgetown statement that Xi had ordered the PLA to be ready by 2027 remained the highest-attributed open-source intelligence on the timeline; Burns successors in Trump-2 (CIA Director John Ratcliffe) have neither confirmed nor revised the assessment publicly.

• The corpus assesses the 2025 cross-strait policy through three accounts symmetrically: (A) the PRC stated logic that "the Taiwan question is China's internal affair" and that PLA, CCG, and Strait Thunder operations are sovereignty-defending responses to "separatist provocations"; (B) the Taiwan and US-allied critique that the 2025 tempo represents an escalation toward operational quarantine and that the CCG cordon, cable cuts, and cognitive operations are sub-threshold acts of coercion below the Article 8 Anti-Secession Law triggers; (C) the structural reading that the Trump-2 tariff bargaining has created an unprecedented commercial bargaining space within which Taiwan's status risks becoming a transactional variable, and that the post-2 April / post-Geneva semiconductor framework is the most consequential US-China commercial architecture since the 2020 Phase One deal. Account A is articulated by the TAO, MFA, PLA MND spokespersons, and Global Times / People's Daily commentary. Account B is articulated by ROC MAC, NSC, MND, and the broad US-allied analytical consensus (CSIS, CFR, CNAS, ASPI, INDSR). Account C is articulated by structural analysts including Wen-ti Sung, Tong Zhao, Lyle Goldstein, Robert Daly, and senior commercial analysts (Daniel Russel, Scott Kennedy). The empirical test of which account proves dominant will be the August 2025 expiration of the Geneva framework, the Section 232 chip-tariff conclusion, and whether a Strait Thunder-2025B exercise materialises in the May 2025 – May 2026 window covering the second Lai-inauguration anniversary, the Lai National Day, and the 80th anniversary of the end of World War II that Xi has elevated as a sovereignty-bearing commemorative occasion.

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2. The 2025 Inflection — From Joint Sword-2024B to Strait Thunder-2025A

The cross-strait operational year of 2025 cannot be read in isolation from the December 2024 unnamed ninety-warship deployment with which it began. As reconstructed in CN-E-01, the December 2024 exercise — running from approximately 9 to 12 December 2024 and unacknowledged by Eastern Theater Command or the PRC Ministry of National Defence — produced the largest single PLAN Taiwan-Strait-theatre deployment since the 1995–96 Third Strait Crisis. Bonny Lin (CSIS) and John Culver (Carnegie) characterised it as the "no-name normalisation" model: the PLA had moved beyond the rhetorical-escalation cost of named exercises (Joint Sword-2024A in May 2024, Joint Sword-2024B in October 2024) to a deployment posture that could be activated, sustained for several days, and then de-escalated without ever generating the diplomatic-protest cycle that named exercises produced.

The December 2024 deployment was the operational hand-off into 2025. By Christmas 2024, the PLA Eastern Theater Command had effectively normalised a year-round deployment baseline of roughly 8–12 PLAN warships in Taiwan-Strait-adjacent waters, approximately 25–40 PLA aircraft daily ADIZ incursions on average operational days (with periodic spikes), and continuous CCG patrols around Kinmen, Matsu, and the inland-sea waters claimed under PRC jurisdiction. Taiwan MND's daily release format — modernised in September 2020 under then-Defence Minister Yen De-fa — recorded median-line crossings on more than three-quarters of operational days in Q1 2025, a continuation of the post-Pelosi normalisation that had broken the 1954-vintage median-line buffer in August 2022.

The doctrinal context for the 2025 inflection had been laid out in three Beijing-side commitments. First, Xi Jinping's New Year address of 31 December 2024 had restated the canonical formulation: "The compatriots on both sides of the Taiwan Strait are one family. No one can sever our kinship; no one can stop the historical trend toward national reunification" (两岸同胞一家亲，没有人能割断我们的血脉亲情，没有人能阻挡祖国统一的历史大势). The phrasing — restating the 31 December 2008 "Hu Six Points" framing with the 2019 "Xi Five Points" overlay — was read by TAO-followers (Caixin's Taiwan desk, Global Times) as a continuity statement rather than a doctrinal escalation. Second, the 2025 Government Work Report delivered by Premier Li Qiang at the NPC on 5 March 2025 retained the formulation introduced in the 2024 Report: "we will firmly advance the cause of national reunification" (坚定不移推进祖国统一大业) without the conditional "peaceful" modifier that had appeared in earlier Reports through 2022. The dropping of "peaceful" from the Taiwan paragraph of the 2024 and 2025 Reports has been treated by CSIS, CNAS, and Wen-ti Sung as a low-key but cumulative doctrinal signal. Third, the PRC Ministry of Foreign Affairs and TAO had returned in late 2024 to the formulation that "Taiwan independence is a dead end" (台独是死路一条) as the modal closing line of spokesperson statements on Taiwan matters.

The Eastern Theater Command had, in parallel, transitioned through 2024 into a posture characterised by analysts as "exercise-ready normalisation" — the ability to convert a routine deployment baseline into a named exercise within 24–48 hours, without the visible logistical pre-positioning (fuel barges, ammunition resupply runs, large-deck movements out of homeport) that had characterised the August 2022 Pelosi-visit exercise. The shift had been enabled by the construction at Wenzhou, Pingtan, and Xiapu of forward-deployable maintenance and resupply infrastructure, and by the doctrinal integration of the China Coast Guard's Fujian flotilla into Eastern Theater Command's joint coordination architecture under the 2023 Coast Guard reform.

By January 2025 the operational baseline had thus moved from the pre-Pelosi pattern of episodic exercises punctuating a low-tempo presence, to a continuous high-tempo presence punctuated by named-exercise spikes. The five-year strategic-grey-zone normalisation pattern — articulated by CSIS's Bonny Lin and Brian Hart in their February 2025 China Power update as the "constant pressure plus surge" model — had become the modal operational concept. Strait Thunder-2025A would be the year's first surge.

The Lai presidency's first cross-strait year (May 2024 – May 2025) had thus produced a recurring cycle: each major Lai sovereignty-signalling speech (the 20 May 2024 inaugural with the "互不隸屬" formula; the 10 October 2024 National Day "1949 thesis"; the 13 March 2025 "foreign hostile force" designation) was followed within days or weeks by a major PLA operational surge (Joint Sword-2024A on 23–24 May 2024; Joint Sword-2024B on 14 October 2024; Strait Thunder-2025A on 1–2 April 2025). The pattern's stimulus-response symmetry was sufficient that PLA-watchers (CSIS's Brian Hart, ANU's Wen-ti Sung, INDSR's Tu Chih-shuang) had publicly anticipated the Strait Thunder-2025A trigger to within a two-week window after the 13 March speech.

3. The January–February 2025 Posture — Normalising Grey-Zone Pressure, Cable Cuts, and CCG Cordon-Building

The period from 1 January 2025 to the 13 March Lai speech was characterised by a normalising baseline rather than discrete escalation events. Taiwan MND daily releases for January and February 2025 record an aggregate of more than 800 PLA aircraft sortie tracks and more than 200 PLAN vessel tracks across the two months, with median-line crossings on 47 of 59 operational days [TBD-VERIFY: ROC MND end-of-quarter compilation provided aggregate but not always day-by-day figures; CSIS ChinaPower parallel dataset uses paths rather than counts]. The baseline included PLA Air Force J-16, J-10C, KJ-500 AEW, Y-9 EW variants, BZK-005 and CH-4 reconnaissance UAVs, and increasing operations by the Y-20 large transport in support of forward-deployed maintenance. PLA Navy presence included Type 054A frigates, Type 052D destroyers, and Type 055 large destroyers operating out of the East Sea Fleet's Ningbo and Zhoushan bases.

Two operational developments distinguished the January–February 2025 baseline from the late-2024 baseline. First, the China Coast Guard's Fujian flotilla, under spokesperson Liang Wei, conducted seven separate publicly announced patrols around Matsu and Wuqiu between 5 January and 28 February 2025, including a 25 February announcement that the CCG would "regularly conduct joint patrol enforcement actions in waters of the Taiwan Strait." The 25 February statement was read by the ROC Mainland Affairs Council as an escalation of the post-Kinmen-incident doctrinal posture from "responsive enforcement" to "routine jurisdictional assertion." Minister Chiu Chui-cheng's MAC press conference of 27 February 2025 characterised the CCG statement as "unilateral assertion of jurisdiction over waters within the Republic of China's effective control" and announced that ROC Coast Guard Administration patrol vessels would increase their presence around Matsu by approximately 30 per cent.

Second, the 3 January 2025 Shunxin-39 (順興39) cable incident inaugurated a 2025 pattern of suspected deliberate cable cuts using opaque-flag commercial vessels with PRC ownership or crew links. The Shunxin-39 — a Cameroon-flagged, Hong Kong–linked bulk carrier reportedly owned by a PRC-national shell company — was observed by ROC Coast Guard and AIS-tracking services to have been loitering over the Trans-Pacific Express (TPE) cable corridor north of Keelung at the time of a Chunghwa Telecom outage on a TPE branch cable. ROC Coast Guard dispatched the Hsun-hu No. 9 patrol vessel; sea conditions and the vessel's evasive routing through Japanese territorial waters prevented boarding. The incident was the first 2025 cable cut for which open-source attribution to a PRC-linked vessel was established.

The 25 February 2025 Hong Tai 168 (宏泰168) incident produced the first criminal prosecution. The vessel — a Togo-flagged general-cargo ship with eight PRC-national crew and a PRC-national captain — was detained by ROC Coast Guard in waters off Tainan after damage to a Matsu-Taiwan submarine cable operated by Chunghwa Telecom. The captain, Wang Wenguo (王文國), was indicted on 8 April 2025 by the Tainan District Prosecutors' Office on charges under the Telecommunications Management Act and the Criminal Code's public-property destruction provisions; the indictment was the first criminal prosecution of a cable-cut suspect in Taiwan's history. The April 2025 Yonaguni-adjacent cable damage, occurring on or around 17 April 2025, affected a TPE branch cable approximately 90 kilometres south-southwest of Yonaguni Island; Japan's NICT and Taiwan's National Communications Commission jointly characterised it as "consistent with deliberate damage by an anchor-dragging operation."

The cable-cut campaign's analytical context is the maritime grey-zone analogue of the cyber Volt Typhoon "living off the land" persistence model. Taiwan's National Security Bureau, in Director-General Tsai Ming-yen's testimony before the Legislative Yuan Foreign Affairs and National Defense Committee on 6 March 2025, characterised the cable incidents as "consistent with a campaign to demonstrate Taiwan's vulnerability to information-infrastructure disruption without crossing the threshold of attribution-clear kinetic action." The architecture's plausible-deniability features — third-country flag-of-convenience registration, PRC-national crew, anchor-dragging behaviour explicable as navigational accident, evasive routing through neighbouring states' territorial seas — are operationally similar to PRC cyber operations against US critical infrastructure (water, power, transport) attributed by CISA to Volt Typhoon and Flax Typhoon.

The January–February 2025 cyber baseline also included increased intrusion attempts against ROC government ministries (the Ministry of Digital Affairs, the Ministry of National Defense, the Mainland Affairs Council, the Ministry of Foreign Affairs), the Central Election Commission, and the Taiwan Power Company. NSB reporting attributed the operations to actors aligned with the Ministry of State Security (MSS) Tianjin Bureau and the PLA Strategic Support Force / Information Support Force (the latter reorganised in 2024 as the Information Support Force after Xi's April 2024 PLA-organisation announcement that abolished the SSF as a separate service and reorganised its functions into Aerospace Force, Cyberspace Force, and Information Support Force). The cyber tempo against critical-infrastructure targets — TSMC's network periphery, Chunghwa Telecom's signalling architecture, the Taiwan Power Company's grid-operations interface — represented continuity with the documented 2023–2024 baseline rather than a discrete 2025 escalation.

The MFA's January–February 2025 commentary on Taiwan, delivered through Spokespersons Mao Ning (毛宁) and Lin Jian (林剑) in the daily MFA press conference, retained the canonical formulation set: "Taiwan is an inalienable part of China's territory" (台湾是中国领土不可分割的一部分); "the Taiwan question is China's internal affair, brooking no external interference" (台湾问题是中国的内政，不容外部势力干涉); "Taiwan independence is a dead end" (台独是死路一条). The MFA also re-articulated, in response to questioning about the Trump-2 administration's Taiwan policy and the 13 February 2025 Trump-Xi phone call, the formula that "we hope the U.S. side will honour its commitments and not send wrong signals to Taiwan independence separatist forces" (希望美方信守承诺，不向"台独"分裂势力发出错误信号).

4. The 13 March 2025 Lai Speech — Seventeen Strategies, Ten Measures, and the "Foreign Hostile Force" Designation

President Lai Ching-te's press conference at the Presidential Office on the afternoon of 13 March 2025 was the most consequential ROC cross-strait policy announcement of the post-inauguration year. The press conference, attended by Premier Cho Jung-tai (卓榮泰), Vice President Hsiao Bi-khim (蕭美琴), National Security Council Secretary-General Joseph Wu (吳釗燮), National Security Bureau Director-General Tsai Ming-yen, Mainland Affairs Council Minister Chiu Chui-cheng, and Minister of National Defense Wellington Koo, was preceded by a formal National Security Council meeting on 12 March 2025 that had reportedly considered and approved the seventeen-strategy package.

Lai opened the press conference by identifying five threat categories that had crystallised in the period since the 20 May 2024 inauguration: sovereignty erosion by the PRC; military intimidation and grey-zone coercion; infiltration of Taiwan's society including civic, religious, and commercial channels; economic coercion; and cognitive warfare and disinformation. The five-threat framework was structurally analogous to the threat taxonomy used in the 2025 National Defense Report drafted by MND. Lai then announced that the National Security Council had approved seventeen national-security strategies addressing the five threat categories, and ten implementation measures that would be operationalised over the following months by the relevant ministries and the executive Yuan.

The "foreign hostile force" (境外敵對勢力) designation was the legal centrepiece. Lai formally designated the People's Republic of China as a "foreign hostile force" under Article 2-2 of the Anti-Infiltration Act (反滲透法), the 2020 law passed at the end of the Tsai-1 second term and refined under Tsai-2. Article 2-2 of the Act defines "foreign hostile force" as "countries, political entities, or groups that confront the Republic of China militarily or that uphold non-peaceful means to endanger the sovereignty of the Republic of China," and triggers offence provisions covering political donations, election-campaign-related conduct, lobbying, and other activities undertaken at the direction or with the funding of a foreign hostile force. The designation extended the operational reach of the Anti-Infiltration Act's offence framework from de facto application (where the prosecution had to demonstrate "foreign hostile force" status as a matter of fact in each case) to formal application (where the designation is presumed).

The ten implementation measures included:

(i) Reinforced scrutiny of cross-strait exchanges by PRC entertainers, influencers, and "China-related" cultural content operating in Taiwan, including reviews of the Ministry of Culture's Mainland artist permit framework and tightened reporting requirements for Taiwanese platforms hosting PRC-origin content.

(ii) Reinforced loyalty affirmations for retired ROC military and intelligence officers, addressing documented PRC-aligned recruitment of retired officers (the Liberty Times and CommonWealth magazine had reported through 2024 on more than thirty retired-officer recruitment cases). The measure extended loyalty-pledge requirements to retired officers seeking to visit the PRC and tightened criminal penalties for breach.

(iii) Review of "China-affinity" programmes in Taiwan's schools and universities, including the Ministry of Education's audit of Mainland-affairs exchange programmes, Confucius Institute legacies (largely already closed under Tsai), and university research partnerships with PRC institutions in dual-use technology areas.

(iv) Enforcement of citizenship-renunciation requirements for individuals holding both PRC and ROC household registration. The measure activated a long-dormant statutory provision under the Cross-Strait Act and the Nationality Act requiring ROC nationals who had also obtained PRC household registration to renounce one or the other. The MAC and the National Immigration Agency estimated the affected population at approximately [TBD-VERIFY: MAC press materials cited estimates ranging from "tens of thousands" to "more than 100,000" individuals affected; the figure remains contested].

(v) Tightened oversight of cross-strait exchange permits for PRC-affiliated bodies, including the United Front Work Department–linked associations, the Taiwan Compatriots Association, and PRC commercial associations that had hosted Taiwan-side travel and meetings.

(vi) Expansion of the financial-flow review mechanism under the Financial Supervisory Commission to address PRC-origin investment using third-country shell entities.

(vii) Reinforcement of critical-infrastructure protection in telecommunications, energy, financial systems, and transportation, including continued submarine-cable redundancy investment by Chunghwa Telecom and the National Communications Commission.

(viii) Expansion of cognitive-warfare counter-measures, including platform-content review mechanisms, fact-checking-network coordination with Taiwan FactCheck Center and IORG, and the Ministry of Digital Affairs's anti-disinformation programme.

(ix) Reinforcement of all-of-society defence resilience — covering the All-Out Defence Mobilization Agency's civilian-defence training programmes, the Whole-of-Society Defense Resilience Committee chaired by the President, and reservist-system reform continuation under Defence Minister Koo.

(x) Strengthened international information operations, including diplomatic and cultural-affairs coordination with the US, Japan, Korea, Australia, and the EU on Taiwan-relevant sovereignty messaging.

Lai concluded the speech by reaffirming the "互不隸屬" (mutually non-subordinate) formulation of the 20 May 2024 inaugural ("the Republic of China and the People's Republic of China are not subordinate to each other"), the 10 October 2024 "1949 thesis," and the constitutional commitment that "the Republic of China is a sovereign and independent country" (中華民國是一個主權獨立的國家). He explicitly stated that "the People's Republic of China is, in fact, a foreign hostile force, and we must approach it as such" — language that, despite its statutory framing, drew the sharpest Beijing response of any Lai speech to date.

The 13 March speech's framing — combining a legal designation, a quantified strategy-and-measure package, and an explicit personal articulation by the President — represented a step beyond the 10 October 2024 National Day address. Whereas the National Day address had been a doctrinal-historical reframing ("the Republic of China was founded in 1911; the People's Republic of China was founded in 1949; the Republic of China and the People's Republic of China are not subordinate to each other"), the 13 March speech was an operationalisation: a legal designation triggering offence provisions, an executive-order-equivalent package of implementation measures, and a presidential commitment to use the statutory tools.

The speech's domestic Taiwan reception was characterised by partisan polarisation. The KMT caucus in the Legislative Yuan, then engaged in the recall-counter-recall cycle covered in TW-D-04, criticised the speech as inflammatory and warned that the "foreign hostile force" designation could expose ordinary cross-strait business, religious, and family contacts to criminal-liability risk. The TPP (Taiwan People's Party) caucus offered a more conditional critique, supporting the threat-recognition framework while questioning the specific drafting of several implementation measures. The DPP caucus supported the speech as a long-overdue alignment of legal categorisation with strategic reality. Civil-society reactions ranged from full support (Taiwan Foundation for Democracy, Economic Democracy Union) to expression of concern about civil-liberties implications (Judicial Reform Foundation, certain religious organisations with cross-strait ministries).

5. Beijing's Response — TAO, MND, MFA, and the Pre-Exercise Information Cycle (14 March – 31 March 2025)

The PRC's response to the 13 March 2025 speech proceeded through a coordinated information cycle that ran from the day after the speech to the eve of the 1 April Strait Thunder-2025A announcement.

The Taiwan Affairs Office issued the first response on 14 March 2025. Spokesperson Chen Binhua, at a special TAO press briefing, characterised Lai's speech as "a fully exposed Taiwan-independence confession" (彻头彻尾的"台独"自白书), and stated that "Lai Ching-te has, through this speech, completely torn off the disguise of 'peace' and openly painted himself as a destroyer of cross-strait peace and a creator of strait crises." The phrase "Taiwan-independence confession" was picked up by Xinhua, People's Daily, and Global Times and became the operative framing across PRC media through the end of March.

The MFA followed on 14 March with statements by Spokesperson Mao Ning at the daily press conference, in response to multiple journalist questions on the speech. Mao stated that "the Taiwan question is China's internal affair, brooking no external interference" and that "'Taiwan independence' is a dead end; any attempt to seek 'independence' will be crushed by the iron will of 1.4 billion Chinese people and by the inevitable trend of history." The MFA statement also addressed the U.S. dimension, urging the U.S. to "honour its commitments on the one-China principle, the three U.S.-China joint communiqués, and President Trump's repeated commitment not to support Taiwan independence."

The MND spokesperson followed on 14 March with a statement by Senior Colonel Wu Qian characterising the PLA as "always combat-ready to safeguard national sovereignty and territorial integrity" and warning that "any 'Taiwan independence' separatist provocation will be met with resolute counter-strikes by the PLA." The phrasing — using "resolute counter-strikes" (坚决反制) rather than the milder "responses" (回应) of earlier MND statements — was the operative escalation marker.

Through the period of 14–31 March 2025, the PRC information cycle developed three layered themes. First, Global Times and the Liberation Army Daily (解放军报) editorialised on the speech's characterisation as a "Taiwan-independence confession," with Hu Lijia's Global Times editorial of 17 March arguing that "Lai's speech has objectively reduced the political distance between Beijing and Taipei to the minimum possible — there is no longer any 'grey zone' for 'maintenance of the status quo' rhetoric." Second, the TAO and the All-China Federation of Taiwan Compatriots issued a coordinated set of statements emphasising the "majority of Taiwan compatriots oppose Taiwan independence and support peaceful reunification" framing, attempting to drive a wedge between the Lai administration and the Taiwan public. Third, PRC-affiliated commentators on Chinese-language social media (Weibo, Bilibili) and in PRC-managed external platforms (CGTN's English Twitter/X presence, Xinhua's bilingual feeds) developed the "parasite" framing that would later appear in the 2 April Eastern Theater Command poster — depicting Lai as a force that needed to be removed for the "host" (Taiwan) to survive.

In parallel, the Eastern Theater Command and Fujian Coast Guard conducted what U.S. and Taiwan observers (CSIS's Brian Hart, INDSR's Tu Chih-shuang) described as "pre-exercise positioning": PLAN warship deployments out of Ningbo, Zhoushan, and Xiapu through 25–31 March 2025 in numbers exceeding the rolling 30-day baseline; increased PLA Air Force exercises in the Eastern Theater's Fujian and Zhejiang training areas; and CCG Fujian flotilla position-keeping in patterns consistent with cordon-establishment. The pre-positioning was visible enough to open-source aviation and ship-tracking observers (the @TaiwanADIZ, @AircraftSpots, and @MT_Anderson accounts; Planet Labs commercial-satellite imagery) that several major analyst desks anticipated a named exercise within the first ten days of April.

The U.S. response to the 13 March speech, delivered through State Department Spokesperson Tammy Bruce's press conference on 14 March, was a calibrated reaffirmation: "the United States' one China policy, guided by the Taiwan Relations Act, the three joint communiqués, and the six assurances, remains unchanged. We continue to oppose any unilateral changes to the cross-strait status quo from either side." The Bruce statement neither endorsed nor distanced from the "foreign hostile force" designation. The State Department also declined to comment publicly on the specific content of the ten implementation measures. The calibrated US response — neither praising the speech as a defence of sovereignty nor implicitly distancing from a perceived escalation — was characteristic of the early Trump-2 administration's effort to keep the Taiwan dimension de-coupled from the active US-China bargaining over tariffs, semiconductors, fentanyl, and Ukraine.

6. Strait Thunder-2025A — Operational Reconstruction of 1–2 April 2025

The Strait Thunder-2025A (海峡雷霆-2025A) joint exercise was announced by Eastern Theater Command at approximately 07:35 Beijing time on 1 April 2025 via the Command's official Weibo account. The announcement statement, attributed to Eastern Theater Command Spokesperson Senior Captain Shi Yi, designated the exercise as a "joint exercise of army, navy, air force, and rocket force" under the unified command of Eastern Theater Command (commander General Lin Xiangyang, who had taken command in January 2022 and remained in post through 2025). The stated exercise objectives included: "testing and improving the joint operations capabilities of theatre forces, joint seizure of comprehensive superiority, joint strikes on maritime and ground targets, and blockade and control of key areas and sea routes" (检验和提高战区部队联合作战能力、联合夺取综合制权、联合打击海上和地面目标、对要域要道封控). The objectives' language repeated four of the seven objectives announced for Joint Sword-2024B on 14 October 2024, with the addition of new emphasis on "blockade and control of key areas and sea routes" — phrasing that PLA-watchers (CSIS's Bonny Lin, ASPI's Malcolm Davis) read as a quarantine-doctrine signal.

Unlike Joint Sword-2024A and 2024B, which had been announced with explicit reference to specific Lai speeches (the 20 May 2024 inaugural in 2024A's case; the 10 October 2024 National Day address in 2024B's case), Strait Thunder-2025A was announced with reference only to "Taiwan independence separatist forces" (台独分裂势力) and the "preservation of national sovereignty and territorial integrity." The avoidance of an explicit Lai-speech reference was, paradoxically, read by US-allied analysts as evidence that the exercise was triggered by the 13 March speech, on the reading that direct reference would have risked appearing to validate Lai's framing.

Operational metrics for 1 April 2025, as compiled by Taiwan MND and corroborated by CSIS ChinaPower, ASPI PLA Tracker, and open-source aviation tracking:

• PLA Air Force: 71 aircraft tracks, of which 47 crossed the median line of the Taiwan Strait or entered Taiwan's southwest, southeast, or northern ADIZ. Aircraft types included J-16 multirole fighters (the largest single platform contingent), J-10C fighters, Su-30MKK, KJ-500 airborne early warning, Y-8 anti-submarine warfare, Y-9 electronic warfare variants, BZK-005 reconnaissance UAV, and CH-4 strike-capable UAV. PLA Navy aviation included Z-9 ASW helicopters operating from frigate flight decks.

• PLA Navy: 19 warships, including at least one Type 055 large destroyer, three Type 052D destroyers, four Type 054A frigates, and supporting Type 056 corvettes and Type 901 fast combat support ships. The aircraft carrier Shandong (CV-17), reported to have departed Sanya in late March, was not visually confirmed in the Taiwan-Strait theatre on Day 1.

• China Coast Guard: 4 cutters operating in patrols around Matsu and Wuqiu, with Liang Wei's spokesperson statement of 1 April announcing that the CCG was conducting "regular law-enforcement patrols" in conjunction with the exercise.

On 2 April 2025, the second day of the exercise, the operational tempo increased:

• PLA Air Force: 76 aircraft tracks (the daily peak for the exercise), with continued median-line crossings and multi-axis ADIZ pressure.

• PLA Navy: 21 warships, with the Shandong carrier group operationally confirmed in waters east of Taiwan, approximately 200 kilometres from the Taiwan east coast.

• PLA Rocket Force: no publicly announced live-fire missile launches over Taiwan or into Taiwan-adjacent waters, in contrast to the August 2022 Pelosi-visit exercise (which had included DF-15 launches and EEZ impacts) and Joint Sword-2024A (which had remained sub-launch). The decision to refrain from live-fire missile activity was read by US-allied analysts as a deliberate restraint signal, possibly to avoid escalation that would complicate the Trump-Xi tariff bargaining then in active backchannel.

• China Coast Guard: 6 cutters across the patrol theatre, with the addition of the Shanghai-Nantong CCG sub-bureau supplementing the Fujian flotilla.

The 2 April Eastern Theater Command information output included a stylised poster, distributed via the Command's Weibo account, depicting Lai Ching-te as a green-coloured "parasite" being squeezed by chopsticks. The poster — described in PRC-state-media commentary as an "artistic expression of public will" — was the most explicit personal-attack imagery to date in PLA exercise messaging. The poster drew condemnation from the U.S. State Department (Spokesperson Bruce's 3 April press conference: "the United States condemns inflammatory rhetoric, particularly imagery dehumanising a democratically elected leader"), the European External Action Service (3 April statement), and the G7 foreign ministries through a coordinated 4 April statement led by Italy (then-chair of the G7) urging restraint and respect for democratic institutions.

The Taiwan response cycle ran through the two days of the exercise and into the immediate post-exercise period. The ROC Air Force scrambled fighters in response to the principal ADIZ-incursion tracks (F-16V from Hualien and Chiayi air bases, Mirage 2000-5 from Hsinchu); the ROC Navy deployed Cheng Kung-class and Kang Ding-class frigates to monitor PLAN movements; ROC Coast Guard deployed offshore patrol vessels to monitor CCG operations around Matsu. The Mainland Affairs Council statement of 1 April, issued by Minister Chiu Chui-cheng, characterised the exercise as "the latest manifestation of the People's Republic of China's continued threat to regional peace and stability." The Presidential Office statement, issued by Spokesperson Karen Kuo (郭雅慧), reaffirmed Lai's commitment to "maintaining the cross-strait status quo" and noted that "the responsibility for the present cross-strait tension lies entirely with the People's Republic of China." Defence Minister Wellington Koo's press conference of 2 April, conducted alongside MND Spokesperson Sun Li-fang, characterised the exercise as "a rehearsal for blockade" and announced enhanced air-defence and coast-guard posture continuing for the following 72 hours.

The 2-day exercise concluded on the evening of 2 April with an Eastern Theater Command summary statement noting that "the joint exercise has achieved its objectives." No formal exercise-conclusion ceremony was reported. The PLA forces involved returned to homeport or to extended-operations baseline positions over the following 72 hours, though the elevated CCG patrol presence around Matsu continued.

The exercise's strategic-signalling content, as assessed by CSIS (Bonny Lin, "What Strait Thunder-2025A Means," Critical Questions, 3 April 2025), ASPI (Malcolm Davis, "Strait Thunder-2025A: A New PLA Concept," The Strategist, 4 April 2025), and Wen-ti Sung (Atlantic Council blog, 4 April 2025), included four elements:

(a) Re-branding from "Joint Sword" to "Strait Thunder": a deliberate doctrinal-signal step indicating that 2025 exercises would adopt new operational concepts. The "Joint Sword" brand had emphasised broad encirclement and joint-force display; the "Strait Thunder" brand emphasised precision-strike, quarantine, and theatre-control. The brand change was paired with the "blockade and control of key areas and sea routes" stated objective, foregrounding the quarantine-doctrine dimension over the encirclement dimension.

(b) No-live-fire restraint: the deliberate decision to refrain from missile or live-fire activity, in contrast to the August 2022 Pelosi-visit exercise, was a calibration signal indicating that the PRC sought to preserve escalation control in a period of active US-China tariff bargaining.

(c) CCG-PLA fusion: the explicit integration of CCG patrols into the exercise announcement and operational execution, with Liang Wei's spokesperson statements directly synchronised with Eastern Theater Command output, demonstrated the operational maturity of the post-2023-reform CCG–PLA joint-coordination architecture.

(d) Two-day duration: the deliberate brevity of the exercise — two days, in contrast to the four-day Joint Sword-2024B (14 October 2024) or the multi-day Pelosi exercise — was a "surge-and-de-escalate" signal calibrated to maximise demonstrative effect while minimising disruption to commercial shipping and to the active Trump-2 tariff bargaining.

7. China Coast Guard "Law Enforcement" Cordon — Liang Wei, Fujian CCG, and the Inland-Sea Logic

The China Coast Guard's 2025 posture around Taiwan is best understood as the operational maturation of a doctrine first publicly articulated after the 14 February 2024 Kinmen-waters capsize incident. The post-2018 CCG, transferred from civilian State Oceanic Administration control to the People's Armed Police under the Central Military Commission's vertical command, had become — by 2025 — an integrated component of the Eastern Theater Command's joint cross-strait architecture, with the Fujian Coast Guard Bureau (福建海警局) operating as the executive arm and with the Donghai (East China Sea) Branch providing the regional command-and-control layer.

The Fujian CCG's spokesperson, Liang Wei (梁伟), emerged in 2025 as the public face of CCG cross-strait operations, paralleling the role that Eastern Theater Command spokespersons Shi Yi and Li Xi played for PLA operations. Liang's public statements through Q1 2025 articulated a four-element doctrinal framework:

First, the inland-sea characterisation: the waters of the Taiwan Strait, including the waters around Kinmen, Matsu, Wuqiu, and the Pratas (Dongsha), are characterised by the CCG as "Chinese inland seas" (中国的内海) subject to PRC jurisdiction. Liang's 25 February 2025 statement that the CCG would "regularly conduct joint patrol enforcement actions in waters of the Taiwan Strait" was the operative articulation. The inland-sea characterisation has no support in the UN Convention on the Law of the Sea (UNCLOS) — to which the PRC is a party — but is consistent with the broader PRC maritime-jurisdictional posture in the South China Sea (where the CCG operates against the Philippines at Second Thomas Shoal and Scarborough Shoal, covered in CN-F-04) and the East China Sea (around the Senkaku/Diaoyu Islands).

Second, the law-enforcement framing: the CCG characterises its operations as "law enforcement" (执法) rather than military or coercive action. The framing is doctrinally significant because it places CCG operations below the threshold of Article 8 Anti-Secession Law triggers (which apply to "non-peaceful means") and below the threshold of internationally recognised acts of war. The framing has been criticised by US Coast Guard analysts (e.g., Steven Stashwick at Pacific Forum) and by US-allied analysts (CSIS's Greg Poling) as a deliberate exploitation of the law-enforcement-versus-military distinction to conduct grey-zone coercion under cover of routine policing.

Third, the vessel-by-vessel boarding doctrine: the 19 March 2024 boarding of the Taiwanese tourist boat Wang Kuang-jiu near Beiding (covered in CN-E-01) established the precedent that CCG cutters would conduct boarding-and-inspection operations on Taiwanese civilian vessels in waters claimed by both sides. Through 2025, the boarding doctrine was applied selectively — not as a continuous practice that would generate sustained Taiwan public-opinion backlash, but as a periodic demonstrative practice that would maintain the precedent's legal-operational viability.

Fourth, the synchronisation with PLA operations: the 1 April 2025 Liang Wei statement explicitly coordinating CCG patrols with Strait Thunder-2025A demonstrated the operational fusion of CCG law-enforcement framing with PLA exercise activity. The fusion produces a doctrinal architecture in which the same maritime presence can be characterised as "law enforcement" by the CCG and as "joint exercise activity" by Eastern Theater Command, with the framing selected for the audience and the moment.

The CCG's 2025 vessel inventory in the Taiwan-Strait theatre included the Type 818 (海警 2901 / 2902 / 2903 series, modified Type 054A frigate hulls displacing approximately 4,000 tonnes, with 76mm guns and helicopter facilities) — the CCG's most capable platforms; the Type 818-class large cutters; Type 056-derivative corvettes; and a range of smaller patrol craft for inshore operations. The Fujian Coast Guard Bureau's homeport facilities at Pingtan, Xiamen, Quanzhou, and Mawei provide forward deployment hubs proximate to Kinmen, Matsu, and the Taiwan-Strait operating areas.

The ROC Coast Guard Administration's response posture under Director-General Chang Chung-lung (張忠龍) and Minister of Ocean Affairs Council Kuan Bi-ling (管碧玲) had been progressively reinforced through 2024 and into 2025. The CGA's fleet of large cutters, including the Anping-class corvettes (the Anping, Chenggong, Tamsui, Hsinchu, Yunlin, Taitung, Kinmen, Lienchiang, Hualien, Penghu) — derived from the ROC Navy's Tuo Chiang-class missile corvette platform — provide constabulary and limited combat capability. The CGA's 2025 patrol architecture around Matsu and Kinmen was configured to ensure that ROC presence matched CCG presence on a vessel-for-vessel basis on most operational days; the ratio strained the CGA's deployable fleet and forced reduction of CGA presence in other operating areas (offshore fisheries patrols in the EEZ; anti-smuggling and anti-trafficking operations).

The MAC's diplomatic response to the CCG cordon included a sustained campaign to internationalise the issue. Minister Chiu Chui-cheng's foreign press briefings through Q1 2025 emphasised the law-of-the-sea dimension and sought to enlist US, Japanese, EU, and Australian coastal-state analytical engagement. The US State Department's response, articulated in successive press briefings and in a 14 March 2025 fact sheet on cross-strait stability, characterised the CCG operations as "concerning grey-zone activities" but stopped short of explicit condemnation; Japan, Australia, and the EU Member States expressed concern at a lower visibility. The lack of public US condemnation in the post-Strait Thunder-2025A period was, in the assessment of Wen-ti Sung and David Sacks (CFR), a function of the Trump-2 administration's preference to keep Taiwan-related rhetoric calibrated to avoid disrupting the active US-China tariff bargaining.

8. The 24–25 April 2025 Joint Combat Readiness Patrol and the Continuation of "No-Name Normalisation"

Three weeks after the conclusion of Strait Thunder-2025A, the Eastern Theater Command conducted a "Joint Combat Readiness Patrol" (联合战备警巡) on 24–25 April 2025. The patrol was announced by Eastern Theater Command spokesperson Senior Captain Li Xi on the morning of 24 April via the Command's Weibo account, with the statement that "Eastern Theater Command of the PLA today organised army, navy, and air force units to conduct joint combat readiness patrols around Taiwan island, testing the joint operational capability of theatre forces."

Joint Combat Readiness Patrols had been the modal PLA cross-strait operational format since 2023, occurring at intervals of approximately every three to four weeks. They sit doctrinally between routine ADIZ-incursion and PLAN-presence operations (which require no announcement) and named exercises (which generate the rhetorical-escalation cycle of TAO, MND, and Global Times output). Joint Combat Readiness Patrols typically generate 30–50 PLA aircraft and 6–9 PLAN vessel tracks in a 24-hour cycle, and they conclude without formal exercise-summary statements.

The 24 April 2025 patrol generated 36 PLA aircraft tracks (per ROC MND release of 25 April, covering the 24-hour cycle ending 06:00 local time on 25 April) and 8 PLAN vessel tracks; the 25 April cycle generated 32 PLA aircraft tracks and 7 PLAN vessel tracks. The scale was at the upper end of the Joint Combat Readiness Patrol baseline, suggesting either a continuation of the elevated post-Strait Thunder-2025A tempo or a possible "Strait Thunder-2025B" preparatory probe.

Rumours of a Strait Thunder-2025B exercise circulated in PRC-affiliated social media in late April 2025, fuelled by the 24–25 April patrol scale and by the proximity to the 20 May Lai-inauguration first anniversary. PLA-watchers (CSIS's Brian Hart, INDSR's Hu Wei-jen, Wen-ti Sung) had publicly anticipated a potential Strait Thunder-2025B in the May 2025 window. By the end of May 2025, no Strait Thunder-2025B had materialised. Analysts attributed the apparent restraint to two factors: first, the 12 May 2025 Geneva US-PRC Joint Statement framework, which created a 90-day tariff-de-escalation window that an exercise spike would have politically disrupted; second, the calibration logic that Lai's 20 May 2024 inaugural had already been "responded to" by Joint Sword-2024A, and that responding to the inaugural anniversary would have required a fresh sovereignty-signalling provocation by Lai of comparable scale to the 13 March speech.

A separate but related development was the late-April 2025 wave of PRC reservist call-up rumours. PRC-state-media and overseas PRC-language media had reported expanded reservist registration drives and what was characterised as a "summer training intensification" in the Eastern, Southern, and Central Theatre Commands. ROC NSB and US OSINT analysts assessed the call-up reporting as consistent with the normal PLA reservist-training cycle rather than as a contingency-mobilisation signal. The reservist-call-up rumours nonetheless contributed to the broader Taiwan public-opinion climate of late April 2025, in which a Taiwan Public Opinion Foundation poll of late April 2025 [TBD-VERIFY: specific TPOF April 2025 poll release date] recorded the highest level of cross-strait anxiety since the post-Pelosi peak of August 2022.

The "no-name normalisation" doctrine — first articulated by Bonny Lin and John Culver after the December 2024 unnamed exercise — continued through Q2 2025. The model embeds large-scale, combat-credible deployment activity within the language of "joint combat readiness patrols" or no-statement operations, sparing the PRC the rhetorical-escalation cost of named exercises while preserving the operational and signalling content. The model also allows for a higher base rate of exercise-like activity than the named-exercise tempo could sustain. The cost of the model is that named exercises, when they occur, are accorded weightier political significance both by the PRC's own public framing and by the international response; the Strait Thunder-2025A exercise of 1–2 April was, in this reading, a name-bearing punctuation of an otherwise continuous tempo.

9. Cyber, Cable, and Cognitive Warfare in Q1 2025

The 2025 cross-strait operational architecture is best assessed not in the military domain alone but in the integrated set of military, paramilitary, cyber, cable, economic, and cognitive operations that together constitute the four-pillar coercion architecture inherited from the post-Pelosi period. Q1 2025 saw activity across all pillars.

In the cyber domain, Taiwan's National Security Bureau quarterly reporting attributed continued high-tempo intrusion attempts against ROC government ministries, the Central Election Commission, and Taiwan critical-infrastructure operators to PRC-aligned actors. The attribution architecture distinguished between MSS-aligned operations (associated with the Tianjin Bureau, the Shanghai Bureau, and the Hubei Bureau, each operating multiple front companies and contractor groups), PLA-aligned operations (associated with the post-April-2024 Aerospace Force, Cyberspace Force, and Information Support Force), and criminal-aligned operations (typically ransomware-focused but with PRC-jurisdiction connections that the NSB read as state-tolerated). The Q1 2025 operational tempo against ROC targets — measured by NSB-published aggregate intrusion-attempt figures — exceeded the 2024 Q4 baseline by [TBD-VERIFY: NSB cited percentage increase figures in 6 March 2025 Tsai Ming-yen testimony; specific number was redacted from public transcript]. The Flax Typhoon and Volt Typhoon groups, both publicly designated by US CISA and US Cyber Command and the subjects of US, UK, and Five Eyes attribution statements, were specifically named in NSB reporting as active against Taiwan critical infrastructure.

In the cable domain, the three Q1 2025 incidents (the 3 January Shunxin-39, the 25 February Hong Tai 168, and the mid-April Yonaguni-adjacent incident) were embedded in a longer-term pattern. Taiwan's two Matsu submarine cables had been damaged thirty-six times between 2017 and 2024 [TBD-VERIFY: Chunghwa Telecom and ROC NCC compilation cited in NSB testimony; Reuters Taipei aggregation produced slightly different numbers depending on incident-classification methodology]; the post-2022 frequency had increased relative to the pre-2022 baseline. The 2025 incidents differed from the pre-2022 baseline in three respects: (a) explicit detention and criminal prosecution by ROC Coast Guard (the Hong Tai 168 prosecution); (b) the use of opaque flag-of-convenience registration with PRC-national crew, providing a plausible-deniability architecture; (c) the increased redundancy investment by Chunghwa Telecom, including a fourth Matsu cable scheduled for commissioning in 2026 and a low-earth-orbit satellite backup arrangement with non-Starlink providers (the Lai administration having deferred reliance on Starlink given Musk's PRC commercial exposure).

In the cognitive domain, Taiwan FactCheck Center and IORG quarterly reporting documented continued PRC-origin disinformation operations targeting Taiwan public opinion. The Q1 2025 campaigns included: a sustained narrative thread arguing that Lai's 13 March speech had "torn up the cross-strait status quo" and was personally responsible for the 1 April exercise; a deepfake video of Lai purportedly admitting to corruption (rapidly debunked by Taiwan FactCheck Center within 48 hours of first appearance); coordinated Line, Threads, X, and Bluesky narratives pushing the framing that the "ten measures" represented authoritarian over-reach by the DPP; and continued amplification of the KMT recall-counter-recall cycle (covered in TW-D-04) framed as evidence of "DPP's loss of public support." The IORG-tracked "188 channels" coordinated Line network, identified during the January 2024 election, remained active through Q1 2025 with adjusted content focus.

The cognitive-warfare architecture's integration with the kinetic and grey-zone pillars is the analytical key. The 2 April Eastern Theater Command "parasite" poster was a cognitive-warfare product (designed for amplification across PRC and PRC-aligned platforms in Chinese, Japanese, English, and Korean) layered onto a military-exercise event. The CCG's "law enforcement" framing is a cognitive-warfare product (designed to keep PRC actions below international legal-political thresholds) layered onto paramilitary operations. The cable-cut campaign's plausible-deniability architecture is a cognitive-warfare product (designed to preserve PRC counter-attribution arguments) layered onto sub-threshold sabotage. The four-pillar architecture is, in this reading, a single integrated system rather than four independent campaigns.

10. Economic Coercion — ECFA Suspensions, Rare-Earth and Antimony Controls, Agricultural Bans

The PRC's economic-coercion toolkit against Taiwan in 2025 consisted of three categories of measure, each calibrated to impose measurable but not catastrophic cost.

First, the ECFA tariff-concession partial suspensions. The Economic Cooperation Framework Agreement (ECFA), signed under the Ma Ying-jeou administration in June 2010, had provided tariff concessions on more than 800 product categories. The PRC General Administration of Customs's December 2023 suspension of concessions on twelve Taiwan petrochemical products (implemented 15 January 2024) was followed by the May 2024 expansion to textiles, machinery, and additional petrochemical lines — together affecting more than 130 product categories with an aggregate Taiwan export value of approximately US$3.5 billion annually [TBD-VERIFY: ROC Ministry of Economic Affairs and Taiwan External Trade Development Council estimates ranged from US$3.2 billion to US$4 billion depending on classification]. The 2025 baseline maintained these suspensions; the General Administration of Customs declined further expansion in Q1 2025, with State Council and Customs sources characterising the existing suspensions as "sufficient pressure" in light of the broader US-China tariff dynamic.

Second, the rare-earth and critical-mineral export controls. The Ministry of Commerce and General Administration of Customs's gallium, germanium, and graphite controls (effective from 1 August 2023) had been progressively tightened through 2024. The December 2024 antimony and drone-parts controls were extended in January 2025 with tighter export-license issuance procedures. The combined effect on Taiwan's downstream industries was material but bounded: TSMC and other Taiwan semiconductor manufacturers had diversified gallium and germanium supply through Japan (Sumitomo, Mitsubishi), Korea, and US-allied refiners; antimony supply was more concentrated and exposure higher. The PRC controls were, however, primarily calibrated to US and EU downstream industries rather than Taiwan-specifically; the Taiwan exposure was a derivative effect of the broader US-China commercial bargaining.

Third, the agricultural-import suspensions. The PRC General Administration of Customs's pre-existing suspensions on Taiwan pineapple (since March 2021), pomelos and certain other fruits (since 2022), grouper (since June 2022 with partial re-listing of certified facilities in 2024–2025), processed seafood, and certain processed food categories had been maintained through 2025. Sporadic 2025 additions affected specific certified facilities through "compliance" deregistration. The aggregate Taiwan agricultural and seafood export exposure to the PRC suspension regime was approximately US$1.2 billion annually [TBD-VERIFY: Council of Agriculture and Ministry of Agriculture figures vary by year; 2024 export-displacement estimates indicated approximately 60 per cent of suspended product value had been redirected to Japan, Korea, US, and Southeast Asian markets].

The economic-coercion architecture's calibration logic, articulated in Caixin and 21st Century Business Herald commentary by PRC commercial-policy analysts, sought to impose measurable cost on Taiwan agricultural producers (politically significant in central and southern Taiwan districts) and selected industrial sectors (petrochemicals, certain machinery categories) without disrupting cross-strait supply chains in semiconductors, ICT components, and consumer electronics — sectors in which PRC industrial dependence on Taiwan exceeds Taiwan dependence on PRC market access. The cross-strait economic interdependence in semiconductors and ICT — Taiwan supplies roughly 90 per cent of the world's most advanced logic chips, the majority via TSMC, and remains a substantial supplier to PRC fabless semiconductor design houses — represents both a constraint on PRC economic coercion and a strategic asset Beijing seeks to absorb through reunification rather than to disrupt through pressure.

The 2024 ECFA-action precedent had a parallel in the cross-strait services trade: the 2010 ECFA early-harvest list and the 2013 Services Trade Agreement (the latter blocked by Taiwan's 2014 Sunflower Movement; covered in TW-B-05) constitute the formal architecture of cross-strait economic integration. The PRC has not formally withdrawn from ECFA — withdrawal would impose costs on PRC importers of Taiwan petrochemicals and machinery and would forfeit the leverage of partial suspension — but has signalled, through Caixin and Global Times commentary, that further suspensions or full withdrawal remain available "policy tools" if Taiwan continues "separatist provocations."

11. The Trump-2 Dimension — The 13 February Trump-Xi Call, TSMC's $100B Pledge, and the April 2 Tariffs

The Trump-2 administration's Taiwan and China policy in the first hundred days unfolded across three principal events: the 13 February 2025 Trump-Xi phone call, the 3 March 2025 TSMC Arizona announcement, and the 2 April 2025 "Liberation Day" reciprocal-tariff package and its subsequent revisions.

The 13 February 2025 Trump-Xi phone call was the first leader-level US-PRC call of the Trump-2 administration. The call, conducted by phone with Trump in the Oval Office and Xi in Beijing, covered four substantive topics per the White House readout: Ukraine and the prospect of a Trump-mediated settlement; fentanyl precursor exports from China; TikTok and the divestiture timeline; and trade and tariffs. The White House readout (issued by Press Secretary Karoline Leavitt) did not reference Taiwan; the Xinhua readout included a formulaic reference to "Taiwan and other major issues affecting US-China relations." Whether Taiwan was substantively discussed remains contested; reporting by Reuters (David Brunnstrom), FT (Demetri Sevastopulo), and WSJ (Lingling Wei) on the call cited unattributed sources offering inconsistent characterisations. The call's principal significance was procedural: it re-established the leader-channel that the Trump-2 administration had signalled, during the transition, it would not pursue on PRC-presumed timelines.

The 3 March 2025 TSMC White House announcement brought TSMC Chairman C.C. Wei to the White House for a joint announcement with President Trump of TSMC's additional US$100 billion Arizona investment commitment over four years. The commitment, layered on top of the pre-existing US$65 billion Arizona investment (covering the first two fabs and the third fab in construction), brought TSMC's total Arizona commitment to approximately US$165 billion. The additional commitment covers three further fabs, two advanced-packaging facilities, and a major R&D centre. Trump's framing at the announcement — "Taiwan stole our chip business" — was characteristically transactional and was met with Taiwanese government readouts (MAC, Presidential Office) that emphasised TSMC's longstanding US-investment trajectory and the unchanged Taiwan headquartering of TSMC's R&D, leading-edge production, and corporate functions.

The TSMC announcement's strategic significance is multi-layered. From the TSMC corporate perspective, the additional investment scales global production capacity, hedges Taiwan-strait geopolitical risk, and addresses tariff exposure. From the US perspective, the investment is a major delivery on the 2022 CHIPS Act's diversification objectives. From the Taiwanese government perspective, the commitment is a significant economic event that the administration sought to characterise as evidence of US-Taiwan industrial integration rather than as decoupling from the Taiwan home base. From the Beijing perspective, the announcement was characterised by Global Times and TAO commentary as "Lai administration's sell-out of Taiwan's technological crown jewels" and as evidence that "Taiwan's chip industry is being hollowed out by US protectionism" — a framing intended to drive a wedge between the Lai administration and Taiwan's industrial-technological constituency.

The 2 April 2025 "Liberation Day" reciprocal-tariff package announced reciprocal tariffs on approximately seventy trading partners, with rates calibrated to bilateral trade-deficit data. Taiwan received a 32 per cent reciprocal tariff — among the highest in the Asia-Pacific allies group. The 9 April 2025 90-day pause, announced after market disruption and material international pushback, reduced the rate for non-China trading partners to a 10 per cent universal baseline pending negotiation. Taiwan's 32 per cent rate was thus reduced to 10 per cent effective 9 April 2025 (although a later reformulation moved the Taiwan rate to 24 per cent and then back to 10 per cent through April; the precise sequencing is reported variably across Reuters, FT, and WSJ accounts [TBD-VERIFY]). The Section 232 semiconductor investigation opened by the Department of Commerce on 1 April 2025 provides the legal architecture for sector-specific chip tariffs that would apply independently of the reciprocal-tariff regime.

The Taiwan-government response to the 2 April tariff cycle was managed through MOEA and the Office of Trade Negotiations under Vice Premier Cheng Li-chiun (鄭麗君). President Lai's televised address of 6 April 2025 announced a five-point economic-response framework: zero-tariff negotiation offer to the US; deeper US-Taiwan supply-chain integration; expanded Taiwan investment in the US (including a commitment to additional TSMC and Foxconn investments); reinforcement of Taiwan industrial capacity; and a Cross-Strait Industry Adjustment programme. The Lai response was carefully calibrated to align Taiwan with the Trump-2 administration's commercial framework without forfeiting Taiwan's sovereignty narrative.

The chip-tariff-as-bargaining-chip framing was articulated in unattributed senior-administration commentary and by USTR Jamieson Greer in early Senate Finance Committee testimony of late March 2025. The framing has two components: first, that the threat of sector-specific semiconductor tariffs under Section 232 provides leverage in the broader US-China bargaining over fentanyl, market access, and trade deficits; second, that the same threat provides leverage over US-allied semiconductor producers (Taiwan, Korea, Japan, Netherlands) to commit to US-located production and to align with US technology-export-control architecture. The framing's effect on Taiwan is ambiguous: it commits Taiwan to deeper US-Taiwan industrial integration (an outcome the Lai administration marked welcomes) while creating commercial bargaining dynamics over which Taiwan has limited control.

The Trump-2 administration's Taiwan-specific policy — distinct from the China-policy framework within which Taiwan tariffs were calibrated — preserved formal continuity with prior administrations. Defense Secretary Pete Hegseth's first Indo-Pacific trip in February 2025 included reaffirmation of the Taiwan Relations Act and the six assurances; the State Department's January 2025 fact-sheet revision on US-Taiwan relations restored language that had been added under the first Trump administration and the Biden administration affirming the "unofficial but robust" character of the US-Taiwan relationship. Arms sales authorisations through Q1 2025 continued at a pace consistent with the prior administration's baseline, with a Notice of Proposed Sale of [TBD-VERIFY: specific late-Q1 2025 package details vary across reporting] communicated to Congress in April 2025.

12. The Geneva Framework — Bessent, Greer, and the 12 May 2025 Joint Statement

The Geneva US-PRC talks of 10–11 May 2025 produced the first significant de-escalation of the post-2 April tariff cycle and re-framed the broader US-China commercial relationship within a 90-day negotiating window. The talks were held at the Villa Saladin, the Swiss residence of the UN Permanent Representative, over the weekend of 10–11 May 2025. The U.S. delegation was led by Treasury Secretary Scott Bessent and U.S. Trade Representative Jamieson Greer; the PRC delegation was led by Vice Premier He Lifeng (何立峰), Director of the Office of the Central Financial Commission and the senior PRC official with economic-portfolio authority below the Premier level. Working-level delegations on both sides included Treasury and USTR staff for the US, and Ministry of Commerce, NDRC, and PBOC staff for the PRC.

The talks' notable content covered: bilateral tariff levels; the Section 232 semiconductor investigation; rare-earth and critical-mineral export controls; fentanyl precursor control enforcement (a Trump-2 priority); intellectual-property protection; technology-transfer requirements affecting US firms operating in China; market access in financial services, automotive, and digital sectors; and the broader institutional architecture for ongoing negotiation.

The 12 May 2025 Joint Statement, released simultaneously by the U.S. Treasury Department and the Chinese Ministry of Commerce, framed the tariff rollback. Effective 14 May 2025 for an initial 90-day window:

• US tariffs on Chinese goods were reduced from 145 per cent (the post-April-2 escalation peak, layered as the 20 per cent fentanyl tariff plus 125 per cent "reciprocal" tariff) to 30 per cent (retaining the 20 per cent fentanyl tariff and a 10 per cent reciprocal-baseline tariff).

• PRC tariffs on US goods were reduced from 125 per cent (the post-April-2 escalation peak) to 10 per cent.

• Both sides committed to a 90-day negotiating window during which detailed sectoral and structural issues would be addressed.

• Both sides committed to maintain communication at the Vice-Premier / Treasury Secretary level.

The Geneva framework was structurally important for three reasons. First, it demonstrated that the post-April-2 escalation had reached a level of mutual commercial dislocation that both sides judged unsustainable: the 145 per cent / 125 per cent peak had effectively halted normal commercial trade in the affected categories, and the Q2 2025 economic-data risk for both economies was considerable. Second, it preserved the structural elements (the Section 232 investigation, the BIS export-control architecture, the fentanyl-tariff layer) that the Trump-2 administration valued as longer-term leverage. Third, it provided the institutional channel through which meaningful bargaining over the 90-day window could proceed without the rhetorical-pressure cycle of headline tariff escalation.

Bessent's post-meeting press statements (Geneva, 12 May 2025) characterised the framework as a "pause to allow detailed sectoral negotiation" and emphasised that the underlying structural disputes — including fentanyl, IP protection, market access, and supply-chain resilience — remained to be addressed. Bessent specifically declined to comment on Taiwan in the Geneva context, deflecting a journalist question by stating that "Taiwan is not a subject of these talks." Greer's post-meeting statements reinforced the Section 232 architecture: "the chip investigation continues; the Geneva framework does not affect sectoral national-security investigations."

He Lifeng's post-meeting press conference at the Chinese Mission in Geneva, and the State Council Information Office briefing of 13 May 2025, framed the Geneva outcome as proof that "dialogue and consultation are the only correct path" and that "the US side's previous approach of unilateral pressure has been demonstrated to be unworkable." The framing was consistent with Beijing's longer-term diplomatic-rhetoric positioning of multilateral and bilateral consultation against US "unilateralism," and was internally configured for both PRC public consumption and international audiences in Asia, Africa, Latin America, and Europe.

The Geneva framework's silence on Taiwan was, in the Taiwanese-government and US-Taiwan-corporate readout (Reuters Taipei, FT Taipei, Bloomberg Taipei), the most consequential feature. Taiwan had not been raised in the Joint Statement, in either side's public statements, or in the announced agenda for the 90-day negotiating window. The implication — that Taiwan was being kept outside the explicit commercial-bargaining frame — was welcomed as a short-term outcome but viewed with concern as a longer-term framing: the absence of Taiwan from the explicit US-China commercial bargaining could be either a sign that Taiwan was being protected from commercialisation, or a sign that the principal Taiwan-related US leverage (the Section 232 chip-tariff threat) was being held in reserve for later bargaining.

The Geneva framework's interaction with the cross-strait operational tempo was, in May 2025, a stabilising factor. The Eastern Theater Command's restraint in conducting a Strait Thunder-2025B exercise around the 20 May Lai-inauguration anniversary was widely read as in part a Geneva-framework calibration: a major exercise spike in the immediate aftermath of the Geneva talks would have politically damaged the framework and risked precipitating Trump's preferred tariff-escalation response. The reciprocal calibration — that the Lai administration also moderated public sovereignty-signalling rhetoric in the 14 May – 20 May window — was visible in the Presidential Office's relatively muted handling of the inauguration anniversary, with no major speech or framework announcement comparable to the 13 March 2025 package.

13. The 2027 Timeline Debate Revisited — Paparo, Burns, Carnegie, and the Reunification Calendar

The "2027 horizon" entered the US strategic discourse on Taiwan with Admiral Philip Davidson's 9 March 2021 Senate Armed Services Committee testimony, which cited PRC actions and stated US intelligence assessments to argue that Taiwan could face PRC invasion threat within six years. The Davidson testimony established 2027 as a focal date and produced the "Davidson window" framing that has shaped US, allied, and Taiwanese defence planning since. CIA Director William Burns's 2 February 2023 Georgetown statement that Xi Jinping had directed the PLA "to be ready by 2027" to conduct a successful Taiwan invasion provided the highest-attributed open-source intelligence basis for the date.

In 2025, the timeline debate developed in three directions.

First, Admiral Samuel Paparo's 9 April 2025 SASC testimony reframed the discussion from forecasted-decision-window to operational-rehearsal-window. Paparo, who had succeeded Admiral John Aquilino as INDOPACOM commander in May 2024, testified at the height of the post-Strait Thunder-2025A news cycle. His characterisation — that PLA operations in 2024–2025 had become "rehearsals, not exercises" — drew on the operational reality that the post-Pelosi exercise tempo had moved from episodic to continuous, and that named exercises now drew on the operational baseline rather than requiring distinct mobilisation. Paparo also stated that the PLA's posture had compressed "the warning time" for US and allied forces from "weeks to days." The testimony's specific operational claims drew careful attention from US, Taiwanese, and Japanese defence planners.

Second, the academic and think-tank assessment of the 2027 timeline shifted toward a more nuanced position than the binary "Xi is going / Xi is not going" framing of 2022–2023. CSIS's Tracking China's Military Activities Around Taiwan and the China Power project's 2025 updates by Bonny Lin, Brian Hart, and Matthew Funaiole emphasised the difference between "capability to conduct" (which the PLA was approaching for limited contingencies by 2027) and "decision to conduct" (which remained a function of political, economic, and risk-calculation variables that were not in 2025 indicating an imminent decision). John Culver's continuing Carnegie work emphasised the "preparation indicators" framework: civilian mobilisation, food and energy stockpiling, diplomatic recall, financial-system preparation, and propaganda-content preparation. None of these indicators were observably elevated in 2025 to the levels Culver's framework would predict for an imminent decision. Tong Zhao's Carnegie China commentary emphasised the strategic-deterrence dimension: PLA Rocket Force restructuring, the post-2023 anti-corruption purge of the Rocket Force leadership, and the nuclear-conventional escalation-control architecture remained in formation rather than at a deployment-ready state.

Third, the Trump-2 administration's open-source framing of the timeline was, in 2025, less prominent than under the Biden administration. Burns's 2023 framing had been amplified by senior Biden officials (Sullivan, Blinken, Austin) in 2023 and 2024. The Trump-2 administration's senior officials — CIA Director John Ratcliffe, Secretary of State Marco Rubio, Defense Secretary Pete Hegseth — had publicly emphasised the threat without restating the specific "2027" formulation. The interpretation by US-allied analysts (CFR's David Sacks, CNAS's Jacob Stokes) was that the administration was preserving public deterrence framing while keeping bargaining flexibility with Beijing on the longer-term calendar.

The PRC's own framing of the reunification calendar continued to be deliberately ambiguous on dates. Xi's 2021 100th-anniversary speech ("the historical task of complete reunification of the motherland must be fulfilled, and will be definitely fulfilled" — 祖国完全统一的历史任务一定要实现，也一定能够实现) and the 2049 long-horizon framing tied to the second-centenary goal both retained primary doctrinal status. The 2027 PLA Centenary (建军一百周年) — the centenary of the PLA's founding at the 1 August 1927 Nanchang Uprising — provided a thematic but not strictly operational date. The 2049 centenary of the PRC founding remained the formal long-horizon deadline. Within these brackets, the leadership's deliberate ambiguity preserved decision-space.

The empirical 2025 indicators that PLA-watchers tracked as "decision-relevant" included: PLA Rocket Force readiness post-purge (still in formation); PLA Navy submarine fleet expansion and basing (continued); PLA Air Force Joint Logistic Support Force development (continued); civilian mobilisation legislation and exercises (no observable elevation); financial-system stockpiling of foreign reserves and gold (continued but explicable on commercial grounds); food and energy strategic-stockpiling (continued); and the demographics of conscription cohorts (constrained by the one-child generation reaching service age). On balance, the 2025 indicators did not support an imminent-decision reading, while supporting a capability-development reading that pointed toward continued PLA modernisation through and beyond 2027.

14. US-Taiwan and US-Allied Posture — Hegseth, Quad-Plus, and the Squad

The US-Taiwan unofficial relationship in 2025 operated through the established institutional architecture: the American Institute in Taiwan (AIT) in Taipei (Director Raymond Greene through mid-2025); the Taipei Economic and Cultural Representative Office in Washington (Representative Alexander Yui); the Department of State's Bureau of East Asian and Pacific Affairs; and the Defense Department's Asia-Pacific Security Affairs office. The 2018 Taiwan Travel Act framework continued to authorise reciprocal high-level travel, although the Trump-2 administration was, through Q1–Q2 2025, calibrated in its use of the Act's authority — preferring lower-visibility working-level travel to high-visibility cabinet-level or sub-cabinet exchanges that could disrupt the active US-China bargaining.

Defense Secretary Pete Hegseth's February 2025 Indo-Pacific trip included stops in Japan, the Philippines, and at INDOPACOM headquarters in Hawaii, with messaging that combined reaffirmation of US Indo-Pacific commitments with a Trump-2-characteristic emphasis on burden-sharing. Hegseth's Munich Security Conference remarks of mid-February 2025 had been principally addressed to European audiences and the Ukraine question; his Indo-Pacific remarks were more conventional in form. The Pentagon's public statements through Hegseth on Taiwan emphasised "deterrence" and reaffirmed the Taiwan Relations Act framework without commitment to specific arms-package timelines.

The Quad (US, Japan, India, Australia) under Trump-2 continued the foreign-ministers and leaders'-summit architecture inherited from the Biden administration. The January 2025 Quad foreign ministers' meeting in Washington — Hegseth's predecessor Antony Blinken's last major meeting and Marco Rubio's first as Secretary of State — included Taiwan-Strait stability language in the joint communiqué. The 2025 Quad leaders' summit, scheduled for the second half of 2025 in India, was anticipated to address Taiwan-relevant maritime-security questions alongside the broader Indo-Pacific agenda.

The "Squad" — the informal US-Japan-Australia-Philippines grouping focused on South China Sea and Taiwan-Strait maritime security — continued to operate through 2025 with bilateral defence consultations, joint maritime patrols, and information-sharing on PRC maritime activity. The Philippines under President Ferdinand Marcos Jr., engaged in the Second Thomas Shoal contestation with the PRC, has emerged as a key node in the broader Taiwan-contingency architecture given the Philippine archipelago's geographic location relative to Taiwan's southern approaches. Under the 2014 Enhanced Defense Cooperation Agreement (EDCA) and the 2023 EDCA expansion to nine sites (including Cagayan facilities oriented toward Taiwan), US force-posture options in a Taiwan contingency have been materially expanded.

Japan under Prime Minister Shigeru Ishiba's continuation through 2025 maintained the post-2022 "Taiwan contingency is a Japan contingency" framing inherited from Abe Shinzo's late-2021 articulation. Japan's December 2022 three-strategy documents — the National Security Strategy, the National Defense Strategy, and the Defense Buildup Plan — had committed to a path of defence-spending elevation toward 2 per cent of GDP by FY2027, the acquisition of long-range counter-strike capability including Tomahawk Block V cruise missiles and indigenous Type 12 SSM extended-range variants, and southwest-island force-posture reinforcement. The 2025 Japanese defence posture continued these commitments.

Korea under President Lee Jae-myung following the early-2025 Constitutional Court decision on the Yoon-impeachment cycle was, by mid-2025, in a recalibration phase. The Lee administration's Taiwan-Strait posture was characterised by an effort to maintain US-Korea alliance commitments while moderating the explicit Taiwan-Strait stability rhetoric that had characterised the Yoon administration's joint statements with the Biden and early Trump-2 administrations. Korea's commercial exposure to the PRC and its position in the semiconductor-supply-chain bargaining gave it distinct interests within the broader allied framework.

Australia under Prime Minister Anthony Albanese continued the AUKUS Pillar One (nuclear-powered submarine acquisition) and Pillar Two (advanced-technology cooperation) frameworks initiated under the Morrison-Biden architecture in September 2021. The Trump-2 administration's AUKUS review (initiated in March 2025, with results pending) introduced uncertainty into the Australian timeline; the Albanese government's response was calibrated to preserve the material defence-cooperation architecture independent of specific submarine-delivery timelines.

The US-Taiwan defence relationship's specific 2025 content included continued PMC (Foreign Military Sales) and DCS (Direct Commercial Sales) authorisations, the Taiwan Volunteer Program (PMS-style training augmentation), and the Reinforcement of Stockpiles for Taiwan provision in the 2023 NDAA. Open-source reporting on training-team presence in Taiwan continued through 2025 at the elevated levels established under the Biden administration. Arms-sales packages communicated to Congress in Q1–Q2 2025 included precision-strike munitions, maritime-surveillance capability augmentations, and ammunition stockpile replenishment.

15. Three-Account Discipline — PRC Stated Logic, Western-Allied Critique, Structural Reading

Following the corpus's methodological commitment to three-account discipline, the 2025 cross-strait policy can be assessed through three frames.

Account A: The PRC Stated Logic

The PRC stated logic, articulated through the TAO, the MFA, the MND, People's Daily, Xinhua, Qiushi, and authoritative speeches by Xi and senior leadership, rests on five propositions:

1. The Taiwan question is China's internal affair. The 1943 Cairo Declaration, the 1945 Potsdam Proclamation, the 1971 UN General Assembly Resolution 2758, the 1972 US-China Shanghai Communiqué, the 1979 US-China Joint Communiqué on Diplomatic Relations, and the 1982 US-China Joint Communiqué on Arms Sales together constitute, in the PRC reading, the international-legal architecture under which Taiwan is recognised as part of China. Lai's "foreign hostile force" designation and the 13 March measures are, in this framing, separatist provocations that violate the One-China architecture.

2. The PLA, CCG, and Strait Thunder operations are sovereignty-defending responses to separatist provocations. PLA exercises, CCG patrols, and the broader coercion architecture are characterised as defensive responses to Lai's "incitement" rather than as escalations. The 2 April Eastern Theater Command poster, the Strait Thunder-2025A exercise, and the continued grey-zone tempo are framed as proportionate responses calibrated to deter further separatist provocation while preserving the path to peaceful reunification.

3. Peaceful reunification remains the preferred path; non-peaceful means are reserved for Article 8 Anti-Secession Law conditions. The 2005 Anti-Secession Law's three conditions — Taiwan declaring formal independence, "major incidents" leading to Taiwan's separation, or the exhaustion of possibilities for peaceful reunification — remain the legal thresholds for use of force. The 2025 measures, in this framing, fall within the "peaceful reunification" framework even when they involve coercive PLA, CCG, cyber, cable, and economic activity.

4. External interference, particularly by the US, is the principal obstacle to reunification. The Trump-Xi 13 February call, the 3 March TSMC announcement, the 2 April tariff cycle, and the broader US-Taiwan relationship are framed as US interference in China's internal affairs. The Geneva 12 May framework provides a vehicle for managing the US-China commercial relationship while preserving the Taiwan-question framing as separate.

5. The reunification timeline is set by historical inevitability and Party-state will, not by external pressure. The 2027 date is treated in PRC commentary as a US-imposed framing rather than a PRC commitment. The 2049 long-horizon framing remains formally authoritative; the PLA Centenary in 2027 is a thematic but not strictly operational date.

Account B: The Taiwan and US-Allied Critique

The Taiwan and US-allied critique, articulated through ROC MAC, NSC, MND, the broad US-allied analytical consensus (CSIS, CFR, CNAS, ASPI, INDSR, TFD), rests on six propositions:

1. The 2025 PLA, CCG, cyber, cable, and economic tempo represents escalation toward operational quarantine, not defensive response. The "stimulus-response" framing of PRC actions as proportionate is misleading: the operational tempo has continuously elevated since 2022 independent of Taiwan-side actions, and the 2025 baseline represents a normalisation of pressure that would have constituted crisis-level escalation in any pre-2022 period.

2. The CCG cordon, cable cuts, and cognitive operations are sub-threshold acts of coercion that exploit the gap between law-enforcement framing and Article 8 Anti-Secession Law thresholds. The PRC's deliberate calibration of activities below the threshold of internationally recognised acts of war — combined with plausible-deniability architecture for cable cuts and cyber operations — constitutes a "quarantine without invasion" strategy that erodes Taiwan's sovereignty without triggering a kinetic-war response from the US and allies.

3. The "Taiwan question is China's internal affair" framing is contested by Taiwan's democratic legitimacy and the post-1996 Taiwan polity. Since the 1996 first direct presidential election, Taiwan has constituted a democratically legitimated polity whose population's preferences on reunification, independence, and status quo — consistently measured at over 80 per cent for some form of status quo or independence — provide an autonomous source of political legitimacy that the PRC's framework does not engage.

4. The "ten measures" of 13 March 2025 are defensive responses to documented PRC infiltration, recruitment, and influence operations, not aggressive separatist provocation. The retired-officer recruitment cases, the United Front Work Department–linked associations, the PRC entertainer/influencer recruitment, and the documented PRC-origin cognitive-warfare operations against ROC elections all provide empirical support for the 13 March legal categorisation.

5. The 2027 PLA capability development represents a real and growing threat to cross-strait stability. While the "decision indicators" framework does not show imminent invasion preparation, the underlying capability development — Rocket Force modernisation, PLAN expansion, joint-logistic-support build-out, and the operational rehearsal pattern of 2024–2025 — produces a strategic environment in which the PRC has, by 2027 or shortly thereafter, the option to attempt forceful reunification at high but acceptable cost.

6. US-Taiwan and US-allied deterrence requires sustained reinforcement of capability, posture, and political commitment. The Trump-2 administration's calibration of Taiwan rhetoric for bargaining purposes risks undermining deterrence credibility; the underlying defence-cooperation architecture (arms sales, training-team presence, allied posture) needs continuation and reinforcement.

Account C: The Structural Reading

The structural reading, articulated through structural analysts (Wen-ti Sung, Tong Zhao, Lyle Goldstein, Robert Daly, John Culver) and commercial analysts (Daniel Russel, Scott Kennedy), rests on four propositions:

1. The Trump-2 tariff bargaining has created an unprecedented commercial bargaining space within which Taiwan's status risks becoming a transactional variable. The chip-tariff-as-bargaining-chip framing, the TSMC US$100 billion commitment, the Section 232 investigation, and the Geneva framework collectively establish a commercial architecture in which Taiwan's industrial-technological assets and Taiwan's tariff treatment are bound together with broader US-China bargaining. The risk is not that Trump will explicitly trade Taiwan, but that the cumulative bargaining dynamic will erode the distinctiveness of US-Taiwan policy from US-China policy.

2. The post-2 April / post-Geneva semiconductor framework is the most consequential US-China commercial architecture since the 2020 Phase One deal. The combination of Section 232, BIS export controls, the 90-day Geneva window, and the underlying technological-supply-chain interdependence is producing a new bilateral architecture whose contours will be set in the second half of 2025. The semiconductor architecture's interaction with Taiwan-Strait stability is direct: TSMC's continued Taiwan headquartering, the PRC's continued dependence on Taiwan-fabricated chips for parts of its industrial base, and the US's reliance on Taiwan-located leading-edge production together create economic-security interdependencies that constrain the use of force by all parties.

3. The cross-strait dynamic is increasingly embedded within a broader "Cold-War-2" framework that includes Russia-Ukraine, Middle East dynamics, and the Indo-Pacific reorganisation. The Trump-2 administration's Ukraine settlement effort, the management of the Israel-Hamas-Iran cycle, and the AUKUS review together produce a global strategic context in which Taiwan-Strait stability is one of several first-order issues. The risk is that resources and attention are spread thin; the opportunity is that the broader Cold-War-2 framework creates allied-coordination structures (Quad, Squad, AUKUS, US-Japan-Korea trilateral) that benefit Taiwan-Strait deterrence.

4. The empirical test of the three accounts will be the 90-day Geneva window expiration, the Section 232 conclusion, and the post-anniversary cross-strait exercise tempo. By August 2025 the Geneva framework will face expiration; by mid-to-late 2025 the Section 232 investigation will conclude; by the end of 2025 the post-13-March cross-strait operational tempo will have produced sufficient data for a year-on-year comparison against 2024. These three empirical tests will inform whether the 2025 measures represent a stabilising recalibration or a continued escalation.

16. Conclusion and Forward View

The 2025 cross-strait year — covering the period from the December 2024 unnamed exercise through the May 2025 Geneva framework — represents the consolidation of the post-Pelosi coercion architecture into a year-round, four-pillar operational system. Strait Thunder-2025A on 1–2 April 2025 was the year's principal named exercise, but the more consequential change has been the absorption of high-tempo military, paramilitary, cyber, cable, economic, and cognitive activity into a continuous baseline that no longer requires named-exercise spikes to demonstrate capability or signal intent.

President Lai Ching-te's 13 March 2025 designation of the PRC as a "foreign hostile force" and the accompanying seventeen-strategy / ten-measure package mark the most significant ROC cross-strait policy step of the Lai presidency to date. The package responds to documented PRC infiltration, recruitment, and influence operations and operationalises the post-inauguration trajectory from the 20 May 2024 "互不隸屬" inaugural through the 10 October 2024 National Day "1949 thesis" to a formal legal categorisation.

The Trump-2 administration's first hundred days have produced a tactical-bargaining framework that places semiconductors and Taiwan tariff treatment within a broader US-China deal architecture, while preserving the formal "one China" position and continuing arms-sales authorisations. The 13 February Trump-Xi call, the 3 March TSMC announcement, the 2 April tariff cycle, the 9 April pause, and the 12 May Geneva framework together establish a commercial architecture in which Taiwan's status risks becoming a transactional variable even where it is not explicitly addressed.

The 2027 timeline debate has shifted from "decision-window" to "rehearsal-window" framing, with Admiral Paparo's 9 April SASC testimony providing the sharpest INDOPACOM characterisation since Davidson's 2021 testimony. The PLA's capability development continues at pace; the political-decision indicators do not currently support an imminent-decision reading; the strategic environment continues to evolve.

The forward view across the remainder of 2025 and into 2026 will be shaped by four variables.

First, the Geneva framework's 90-day expiration in early August 2025 will produce either renewal-and-extension or breakdown-and-re-escalation. The bilateral talks during the 90-day window, conducted by the Bessent-Greer / He Lifeng channel, will address the sectoral and structural issues that the May 12 Joint Statement deferred. The semiconductor sector — through the Section 232 investigation, the BIS export-control architecture, and the chip-tariff bargaining — will be the principal Taiwan-relevant dimension.

Second, the possible Strait Thunder-2025B exercise in the second half of 2025 will be a calibrating signal. The Lai anniversary windows (20 May 2025 inaugural anniversary; 10 October 2025 National Day) and the 80th-anniversary commemoration of the end of World War II (Xi's 3 September 2025 Beijing military parade is the anchor event) provide the principal candidate trigger windows. The exercise's occurrence — or non-occurrence — will signal both the PRC's calibration of the Trump-2 commercial relationship and the operational priorities of Eastern Theater Command.

Third, the 2027 PLA Centenary — the centenary of the PLA's founding at the 1 August 1927 Nanchang Uprising — will provide a thematic but not strictly operational date around which both PRC capability-development demonstration and US-allied deterrence reinforcement will be calibrated. The intervening period (mid-2025 through 2027) will be characterised by sustained capability-development on the PLA side and sustained deterrence-reinforcement on the US-allied side.

Fourth, the Lai administration's domestic political position — particularly through the 2025 recall-counter-recall cycle (covered in TW-D-04) and the trajectory toward the 2028 ROC presidential election — will shape Taiwan's strategic posture and the reception of further sovereignty-signalling steps. The KMT-TPP cooperation pattern in the Legislative Yuan, the recall-vote outcomes, and the cross-strait component of domestic political debate together will inform the Lai administration's calibration of further policy steps.

The corpus will track these four variables through continued document updates and through subsequent anchor documents covering the second half of 2025, the 80th-anniversary commemoration, the 2027 PLA Centenary, and the longer-arc 2049 reunification-calendar question.

---

This document is part of the China governance corpus's Block E series on cross-strait, foreign, and strategic policy. It extends the analysis of CN-E-01 forward into 2025 and pairs with the Taiwan corpus's TW-D-02 (Lai Ching-te presidency), TW-D-03 (TSMC Arizona and Trump-2 chip tariffs), and TW-D-04 (2025 KMT recall campaign and Lai strategic response) for a comprehensive cross-strait reading of the 2025 year.

Last updated: 2026-05-16.

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• TW-C-06: The Pelosi Visit and the Fourth Taiwan Strait Crisis (August 2022)
• TW-D-05: Lai Ching-te's Mid-Term — The Post-Recall Legislative Yuan, the 2025 KMT Chair Succession
• TW-D-06: Taiwan's 2026 Budget Battle, the KMT-TPP Bloc Confrontation, and the Defence-Spending-to-T
• TW-F-04: The Cross-Strait Military Balance, Asymmetric Defence, and the Overall Defense Concept (20
• TW-O-01: Taiwan Megatrends — The 2030s Questions
• US-D-10: Trump-2 Tariff Architecture — IEEPA Foundations, Section 232/301 Expansions, and the 2025–
• US-F-07: US–China Strategic Decoupling — Export Controls, Outbound Investment Screening, and the Sm
• CN-A-00: The Mao Era and the Cold War in Asia (1949-1976) -- background-prologue anchor deepening the Cold-War-Asia dimension (Korea, Sino-Soviet split, Bandung, Southeast Asian revolutionary support) behind CN-A-01's sweep; added by symmetry sweep.