The proposed port is located on the Philippines' Batanes Island, less than 200 kilometers away from Taiwan.
The U.S. military plans to build the port facing Taiwan in a critical location for vessels traveling between the Western Pacific and the disputed South China Sea.
Taiwan's defense officials report regular Chinese military activity in the Bashi Channel between Batanes Island and Taiwan.
Recent clashes between the Philippines and China in the South China Sea have raised tensions.
The U.S. aims to strengthen its defense treaty engagement with the Philippines, with an increase in accessible military bases and U.S. troop presence.
These developments are occurring in the context of the U.S. pursuing closer ties with Asian nations to counter China's influence in the Indo-Pacific region.
U.S. President Joe Biden plans to attend the G20 Summit in India, highlighting regional engagement.
The proposed port location raises tensions with Beijing due to its proximity to Taiwan and the South China Sea.
The U.S. aims to strengthen its defense treaty engagement with the Philippines, expanding military access.