MAY 2, 1982 saw the largest single loss of life in the Falklands War when HMS Conqueror sank the Argentinian warship General Belgrano, killing 323 sailors.
The British submarine hit the 31-year-old warship with two Second World War torpedos 30 miles outside the 200-mile exclusion zone.
The War Cabinet claimed the action was necessary because the warship was a threat to the Task Force.
It was the first serious attack on the Argentine navy by Britain since the conflict over the disputed territory began on April 2.
The government announced the QE2 had been called up along with two ferries and a container ship to take 3,000 troops to the Falklands.