The ARA Santisima Trinidad is a Type 42 destroyer, of the Armada Republica Argentina. Type 42 destroyer HMS Manchester Type 42, also known as the Sheffield class, is a class of destroyers of the Royal Navy. ... Argentine Navy Jack The Armada Republica Argentina (ARA) is the navy of Argentina. ...

She was built at the Argentine AFNE shipyard and commissioned in 1980. Commissioning of the ship, whose construction began in 1973, was long delayed by a bomb attack carried out by the terrorist organization Montoneros in 1975. Santisima Trinidad's hull suffered severe damage and the ship's performance after entering service was greatly hampered as a result of the attack. 1980 (MCMLXXX) is a leap year starting on Tuesday. ... The Movimiento Peronista Montonero was an Argentinian radical criminal leftist guerrilla group, active during the 1970s that committed many violent asesinations. ...

During the Falklands War, along with her sister ship Hercules, she served as the main escort to the aircraft carrier Veinticinco de Mayo. The Falklands War or the Malvinas War (Spanish: Guerra de las Malvinas), was an armed conflict between Argentina and the United Kingdom over the Falkland Islands (also known in Spanish as the Islas Malvinas) and South Georgia and the South Sandwich Islands, between March and June of 1982. ... ARA Hercules is a Type 42 Destroyer of the Armada Republica Argentina. ... An aircraft carrier is a warship whose main role is to deploy and recover aircraft—in effect acting as a sea-going airbase. ... The ARA Veinticinco de Mayo was an aircraft carrier in the Armada Republica Argentina from 1969 to 1999. ...

After the war the British weapons and supplies embargo on Argentina forced the Navy to try to sell both Type 42s to another country. When the attempts failed, the Navy decided to place Santísima Trinidad in reserve as a parts supplier for Hércules. Her last Sea Dart missile launch was conducted in 1987, and Santísima Trinidad´s last cruise took place in 1989. She has not sailed since. Sea Dart launcher Sea Dart is a surface to air missile system mounted on air defence destroyers of the Royal Navy. ...

At present, the Santisima Trinidad is listed as "in reserve awaiting overhaul", however, it is expected that the Navy will formally decommission her. There are projects in the Argentine Congress calling for Santisima Trinidad to be converted into a floating museum.