USS John S. McCain (DDG-56) is an Arleigh Burke-class destroyer currently in the service of the United States Navy. She is part of the Destroyer Squadron 15 within the Seventh Fleet, and has her homeport at the Yokosuka Naval Base in Yokosuka, Japan.
The destroyer was involved in a collision with the tanker ship Alnic MC on 21 August 2017 off the coast of Singapore, which resulted in the deaths of ten of her crew, and left another five injured.John S. McCain's keel was laid down on 3 September 1991, at the Bath Iron Works in Bath, Maine. She was launched on 26 September 1992, sponsored by Cindy McCain, the wife of Senator John McCain III, and was commissioned on 2 July 1994, at the Bath Iron Works with Commander John K. Ross as the first Commanding Officer. The former President of the United States, George H. W. Bush, was the ceremony's principal speaker.[6] McCAIN's maiden deployment was from 10 November 1995 to 10 May 1996 to the 5th and 7th fleets. After the ship returned to her home port of Pearl Harbor, Hawaii she shifted to a forward-deploy port in Yokosuka, Japan in 1997.