Argentine Anticommunist Alliance

The Argentine Anticommunist Alliance (Spanish: Alianza Anticomunista Argentina, usually known as Triple A or AAA) was a right-wing death squad active in Argentina during the mid-1970s, particularly active under Isabel Perón's rule (1974–1976). Initially associated with the Peronist right, the organisation was bitterly in conflict with the Peronist left and other left organizations. Many of its members later became linked to the military junta led by Jorge Rafael Videla (1976–1983) and played a prominent role in the "Dirty War". Despite its name, the AAA acted against a wide range of government opponents, not just communists.

According to a 1983 New York Times article, at the time of the group's founding, Argentina saw a growing number of guerilla attacks by left-wing groups, and harsh repression of political dissidents on the part of the military, paramilitary and police forces. However, according to the 1985 Juicio a las Juntas trial, by 1976 both the ERP and the Montoneros had been dismantled, and so there was no real insurgency to legitimize the so-called "Dirty War."

Led by José López Rega, Minister of Social Welfare and personal secretary of Juan Perón, it enforced the repression against the Peronist left-wing. Rodolfo Almirón, arrested in Spain in 2006, was also an important figure of the Triple A, in charge of López Rega and Isabel Perón's personal security. He died in jail in June 2009. SIDE agent Anibal Gordon was another important member of the Triple A, although he always denied it. He was put on trial and convicted in October 1986. Gordon died in prison of lung cancer the next year.

In 2007, the judge Norberto Oyarbide declared the Triple A caused "crimes against humanity" so its crimes are exempt from statutes of limitations and can be brought to trial.