The Tactical Divers Group (Spanish: Agrupación de Buzos Tácticos, APBT) is the premier special operations force of the Argentine Navy.
The unit was established in 1952 on board LST ARA Cabo San Bartolomé with instructors who were former X-MAS Italian diver commandos.
In the 1982 invasion of Islas Malvinas, the main landing at Yorke Bay to the east of Port Stanley on 2 April, was preceded by an amphibious reconnaissance party of the APBT.
They successfully secured the beach and the lighthouse, and set up beacons to guide the amphibious vehicles of the assault group, which had disembarked from the landing ship ARA Cabo San Antonio some distance offshore.
The error was due to hearsay reported by a journalist from the Argentinian magazine Somos, which was the first to publish an account of the operation,[2] although a number of individual APBT members assisted the Commandos in both actions, specially around Government House.