US Defense Secretary Pete Hegseth reaffirmed Washington’s “ironclad” commitment to a mutual defense treaty with the Philippines during a call with his counterpart in Manila in the face of geopolitical tensions in South China Sea.

MANILA, Philippines (AP) — Canada and the Philippines are in the final stages of negotiating a key defense pact that would allow their forces to hold larger military drills in the South China Sea, where Ottawa has rejected China’s “provocative and unlawful actions,” the Canadian ambassador to Manila said.

The joint patrol on Tuesday over the Scarborough Shoal was the first by the longtime treaty allies since President Donald Trump took office again.

American and Philippine warplanes flew together in a coordinated patrol and drill above the South China Sea, in the allies’ first joint maneuvers over contested waters since U.S. President Donald Trump returned to office, Filipino officials said.