Vessels from the Chinese and Vietnamese navies are pictured during a two-day joint patrol in the Beibu Gulf, Dec. 4, 2024. Two fleets from the Chinese and Vietnamese navies on Wednesday concluded a two-day joint patrol in the Beibu Gulf. Involving four vessels and covering over 200 nautical miles, the patrol saw the fleets enhance information exchange and data sharing by notifying each other about issues related to hydrometeorology and their surroundings, courses and speeds. (Photo by Li Zhengsong/Xinhua)