White House National Security Adviser Robert O’Brien is on a trip to Vietnam and the Philippines, the White House said.
These countries share US concerns about China’s increasingly assertive behavior and its vast claims to waters in Asia.
The White House National Security Council tweeted that O’Brien will meet with leaders from both countries “to reaffirm the strength of our bilateral relationship and to discuss regional security cooperation.”
O’Brien’s visit to Hanoi was preceded by a visit by US Secretary of State Mike Pompeo in October.
The administration of President Donald Trump has declared the Asia-Pacific region and competition with China a priority of US foreign policy.