The United States, Japan and the Philippines have started joint naval exercises in waters near the South China Sea, underscoring closer military coordination as regional tensions with China remain high. The drills come amid ongoing disputes over territorial claims and maritime activity in the area.

According to Reuters, the exercise began on Saturday and brings together three allies that have deepened security ties in response to Beijing’s expanding reach in the Indo-Pacific. The waters near the South China Sea have become a frequent flashpoint as rival claims and patrols increase the risk of confrontation.

The latest operation is part of a broader effort by Washington and its partners to signal support for freedom of navigation and to deter further escalation. It also reflects the Philippines’ push to strengthen defense partnerships as it faces repeated friction with China in contested waters.

While the drills are routine in some respects, their timing highlights how quickly the security environment in the region is hardening. With multiple governments asserting overlapping claims, even limited exercises can take on added political weight.