China’s People’s Liberation Army Eastern Theater Command commences large-scale joint military exercises dubbed Justice Mission 2025 around Taiwan on December 29, 2025. These drills involve army, navy, air force, and rocket force units, marking the resumption of major encircling operations after a nine-month pause.
Triggers and Timing
The drills follow the U.S. approval of a record $11.1 billion arms package to Taiwan under President Trump on December 18, 2025. Analysts link this escalation to perceived external support for Taiwan, with explicit focus on port blockades and deterring foreign intervention.
Taiwan’s defense ministry detects dozens of PLA aircraft and vessels, some entering the contiguous zone. It deploys forces, establishes a response center, and conducts rehearsals to repel invasions. Mission Officials condemn the actions as “military intimidation” while affirming commitment to democracy.

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