FILE -In this March 27, 2016, photo, Vietnamese fishermen fix nets on their boat as while docked at Tho Quang port, Danang, Vietnam, after a fishing trip in the South China Sea. (AP Photo/Hau Dinh, File)

FILE -Chinese President Xi Jinping, right, and Vietnam's President To Lam walk out of a signing ceremony at the Great Hall of the People in Beijing, Aug. 19, 2024. (Andres Martinez Casares/Pool Photo via AP, File)