In 1982, during the Falklands War, Argentine Navy Dassault-Breguet Super Étendard warplanes carrying the AM39 Air-launched version of the Exocet caused damage which sank the Royal Navy destroyer on 4 May 1982. Two more Exocets struck the 15,000-ton merchant ship on 25 May. Two MM38 ship-to-ship missiles were removed from the destroyer ARA "Seguí", a former US Navy destroyer, and transferred to an improvised launcher for land use. The missiles were launched on 12 June 1982 and one hit the destroyer .