PLA encirclement exercises and Taiwan blockade scenarios (2022-2025)

Chinese exercises around Taiwan from August 2022 through Strait Thunder-2025A demonstrated encirclement, strike and control activities that analysts and defence authorities connect to blockade scenarios. An exercise is not a blockade. A blockade seeks to stop traffic through military force or its credible threat. A quarantine or inspection regime may use coast-guard and administrative authority to restrict selected movements below that threshold. None was imposed during this period.

Exercise series

China's August 2022 exercises followed the visit to Taiwan by United States House Speaker Nancy Pelosi. The activity placed military operating areas around the island, included missile launches and affected some commercial routing. It demonstrated the ability to create short-notice exclusion risks, but it did not establish a continuing legal or operational regime over trade.

Joint Sword in April 2023 followed the meeting between Taiwan's President Tsai Ing-wen and United States House Speaker Kevin McCarthy. Joint Sword-2024A began on 23 May 2024 after the inauguration of President Lai Ching-te. Taiwan's Ministry of National Defense reported People's Liberation Army and China Coast Guard activity around Taiwan and the offshore islands. Beijing publicly framed the exercise as punishment for separatist activity. Observed deployment, declared purpose and outside interpretation must remain separate.

Joint Sword-2024B in October 2024 again combined air, naval and coast-guard activity. Analysts treated the coast guard's participation and discussion of inspection or control as relevant to quarantine scenarios. That is a scenario inference, not proof that an inspection regime had been ordered.

Strait Thunder-2025A in April 2025 included declared training associated with control of key areas and routes, according to the official and defence reporting collected in Taiwan's 2025 National Defense Report and the United States Department of Defense's 2025 report on Chinese military developments. The series ended here for the purpose of this entry. Later routine activity or a differently named exercise should not be folded into it without a new dated review.

Blockade and quarantine scenarios

A blockade would use military power to prevent or deter movement to and from Taiwan. It would raise immediate questions about armed conflict, neutral shipping, enforcement and counter-intervention. A quarantine scenario is narrower. The CSIS 2024 study modelled options in which Chinese law-enforcement bodies could require declarations, inspections or routing changes while military forces supplied coercive support.

These concepts overlap in their economic channels: port access, shipping schedules, insurance, energy delivery, food supply and export logistics. They differ in legal claim, force posture and escalation risk. The exercises provide evidence of capabilities and signalling. They do not demonstrate that Beijing selected one concept, could enforce it at acceptable cost or would produce a particular political outcome.

Claims about Taiwan's endurance require explicit assumptions. Stock figures vary by fuel, commodity, reporting date and normal consumption rate. Military dispersal, rationing, alternative routes, allied support, market behaviour and damage to infrastructure would change the result. An inventory number cannot be converted directly into a surrender timetable.

Statecraft assessment

The series belongs in context because the economic mechanism remained threatened or simulated interdiction. Its current effects were preparatory and informational: demonstrating capability, imposing episodic commercial uncertainty and forcing Taiwan and its partners to plan for resilience. Whether this generated compellence is unproved. Its strategic value may instead lie in normalisation, repeated activity can make encirclement appear routine while reducing warning time for a future operation.

See also

Taiwan · Taiwan blockade scenario (economic dimension) · Silicon shield · TSMC · Semiconductor chokepoint · Naval blockade · United States naval quarantine of Cuba (1962) · Grey-zone competition · Defensive resilience doctrine

Sources

1. Ministry of National Defense, Republic of China, press release on Joint Sword-2024A, 23 May 2024.
2. Ministry of National Defense, Republic of China, *2025 National Defense Report*, 2025.
3. Ministry of National Defense, Republic of China, Evolving threats from People's Liberation Army activities, updated 2025.
4. United States Department of Defense, *Military and Security Developments Involving the People's Republic of China 2025*, 2025.
5. Bonny Lin and others, *How China Could Quarantine Taiwan: Mapping Out Two Possible Scenarios*, Center for Strategic and International Studies, 2024.
6. Ministry of National Defense, Republic of China, current assessment of People's Liberation Army and coast-guard activity around Taiwan, checked 29 July 2026.