Twenty sailors are killed when the British Type 42 destroyer HMS Sheffield is hit by an Argentinian Exocet missile during the Falklands War.

The Type 42 or Sheffield class was developed to provide the Royal Navy with a cost-effective, medium-sized guided-missile destroyer focused on fleet air defence. Conceived in the late 1960s after the cancellation of the more complex and expensive Type 82, the Type 42 was intended to protect naval task groups against airborne threats using the Sea Dart missile system.