USNS Stalwart (T-AGOS-1) was a Modified Tactical Auxiliary General Ocean Surveillance Ship and the lead ship of the her class. Stalwart was laid down on 3 November 1982 by the Tacoma Boat Building Company. She was launched on 11 July 1983, and entered service with the United States Military Sealift Command on 12 April 1984. The ship served as an anti-submarine surveillance ship during the Cold War, then as an anti-drug smuggling vessel as part of the United States' War on Drugs.