The Yangtze Patrol, also known as the Yangtze River Patrol Force, Yangtze River Patrol, YangPat, and ComYangPat, was a prolonged naval operation from 1854 to 1949 to protect American interests in the Yangtze River's treaty ports. The Yangtze Patrol also patrolled the coastal waters of China where they protected U.S. citizens, their property, and Christian missionaries.
USS Panay, a United States Navy river gunboat, of the "Yangtze Patrol" commissioned in 1928, as she sinks on the Yangtze River near Nanking, China in December 1937, after being attacked by Japanese aircraft.
1850s–1890s, U.S. Navy sailor, with personal sidearms and a black, fatigue uniform. This was standard issue for China sailors of the early Yangtze Patrol and nicknamed "tars"
U.S. Navy sailors, on board an 1864 river gunboat
USS Ashuelot, a steam-powered, U.S. Navy river gunboat, on the Yangtze Patrol, in service, for one year, in 1874, to protect American interests, in Shanghai, China, and as an exploring expedition, along the upper Yangtze River, photograph, circa 1874
The second USS Palos (PG-16), a shallow draft gunboat built for service on the Yangtze River, China, was pre-constructed at Mare Island Navy Yard in 1912; dismantled and shipped to Shanghai, China: laid down by the Shanghai Dock and Engineering Co., on 28 April 1913; launched on 23 April 1914; sponsored by Mrs. Lee S. Border, wife of Naval Constructor Border who supervised the gunboat's construction ; and commissioned on 24 June 1914.