The 601st Anti-Aircraft Artillery Group, historically known as GADA 601 is the main anti-aircraft artillery unit of the Argentine Army. Its headquarters are just north of Mar del Plata. The unit's name was changed to GAA 601 Teniente General Pablo Ricchieri in 1999. The group played a key role during the 1982 Falklands War. The GAA 601 compound is the main air defence training center in Argentina. From Wikipedia
