"Santísima Trinidad" was the leading ship of the Argentine landings on the Falklands on 2 April 1982. Both the navy and the army commanders of the operation were on board. A team of 84 amphibious commandos and 8 tactical divers landed at Mullet Creek at midnight in 21 Gemini boats lowered from her deck. The wireless message demanding the surrender of the British Governor, Rex Hunt (governor), along with the Royal Marines detachment on the islands was also radioed from the destroyer.