Falklands War: HMS Conqueror remembers Belgrano sinking
2 May 2012 Last updated at 14:07 BST
It is 30 years since a British submarine sank the Argentine navy cruiser, the General Belgrano.
More than 300 sailors were killed in what remains one of the most controversial actions of the Falklands War.
The crew of the submarine sent by the UK, HMS Conqueror, has held a reunion to remember what happened.
The BBC's Allan Little reports.