The United States and its Indo-Pacific partners have started their largest joint military exercises to date, in a show of coordination as tensions with China remain high over Taiwan and the South China Sea. Officials say the drills are designed to strengthen readiness, improve interoperability, and support freedom of navigation in contested waters.

The scale of the exercises reflects growing concern among Washington and regional allies about the risk of coercion or miscalculation in the region. The training is expected to include maritime operations, air defense, and other scenarios meant to signal that the alliance network can respond together if pressure on Taiwan increases.

Beijing has repeatedly criticized such drills, arguing they heighten instability and amount to outside interference in regional affairs. U.S. and allied officials, however, say the exercises are defensive and intended to preserve the existing international order and protect civilian shipping lanes.

The latest maneuver comes as the Indo-Pacific remains one of the world’s most sensitive security flashpoints, with Taiwan at the center of an increasingly fraught rivalry between China and Western-aligned democracies. For regional governments, the drills are both a military message and a reminder of how quickly the balance of power could shift.