The Philippine and Australian navies have begun joint exercises in the South China Sea, underscoring closer defense cooperation as disputes over Beijing’s maritime claims continue to strain the region. The drills started on Sunday, according to Reuters, against a backdrop of repeated confrontations at sea.

The exercises come as Manila seeks broader security partnerships to bolster its position in one of the world’s most contested waterways. Australia’s participation reflects growing concern among regional partners about China’s expanding presence and assertive moves in the area.

The South China Sea remains a flashpoint because of overlapping territorial claims involving China, the Philippines, and other governments. Joint drills are often used to improve coordination, readiness, and signaling, even as diplomatic tensions remain unresolved.

Reuters reported that the exercises began as regional friction simmered over Beijing’s claims. The latest round of training adds to a steady pattern of military activity in the area, where even routine patrols and maneuvers can carry significant political weight.