The latest HMS Warspite was the third of Britain's nuclear-powered submarines, and the second (and final) of the Valiant class

Valiant class submarine

The Valiant class were a class of nuclear-powered fleet submarines in service with the Royal Navy from the mid 1960s until 1994. They were the first fully British nuclear fleet submarine; the earlier used an American nuclear reactor...

. She was launched on 25 September 1965 by Mary Wilson, the wife of the then British Prime Minister Harold Wilson

Harold Wilson

James Harold Wilson, Baron Wilson of Rievaulx, KG, OBE, FRS, FSS, PC was a British Labour Member of Parliament, Leader of the Labour Party. He was twice Prime Minister of the United Kingdom during the 1960s and 1970s, winning four general elections, including a minority government after the...

, and entered service 18 April 1967.

Warspite underwent a two year refit, which was nearing completion just as the Falklands War

Falklands War

The Falklands War , also called the Falklands Conflict or Falklands Crisis, was fought in 1982 between Argentina and the United Kingdom over the disputed Falkland Islands and South Georgia and the South Sandwich Islands...

 started. After the war ended she carried out a long patrol around the island and the Argentine coast.

The submarine was decommissioned in 1991.