Operation Condor (Spanish: Operación Cóndor; Portuguese: Operação Condor) was a campaign of political repression by the right-wing dictatorships of the Southern Cone of South America, involving intelligence operations, coups, and assassinations of left-wing sympathizers in South America. Operation Condor formally existed from 1975 to 1983. Condor was formally created in November 1975, when Chilean dictator Augusto Pinochet's spy chief, Manuel Contreras, invited 50 intelligence officers from Argentina, Brazil, Bolivia, Chile, Paraguay, and Uruguay to the Army War Academy in Santiago, Chile. The operation was backed by the United States, which financed the covert operations. France is alleged to have collaborated but has denied involvement. The operation ended with the fall of the Argentine junta in 1983.
Due to its clandestine nature, the precise number of deaths directly attributable to Operation Condor is highly disputed. Some estimates are that at least 60,000 deaths can be attributed to Condor, with up to 9,000 of these in Argentina. This collaboration had a devastating impact on countries like Argentina, where Condor exacerbated existing political violence and contributed to the country's "Dirty War" that left an estimated 30,000 people dead or disappeared. Others estimate the toll at 50,000 killed, 30,000 disappeared, and 400,000 imprisoned. An investigative commission, relying on the Archives of Terror, among other sources, allowed for the identification of 20,090 victims of the Paraguayan Stroessner regime, including 59 who were extrajudicially executed and 336 who were forcibly disappeared. According to a database by Francesca Lessa of the University of Oxford, at least 805 cases of transnational human rights violations resulting from Operation Condor have been identified, including 382 cases of illegal detentions and torture and 367 murders and disappearances. American political scientist J. Patrice McSherry estimated between 400 and 500 killed in cross border operations. She further stated that of those who "had gone into exile" and were "kidnapped, tortured and killed in allied countries or illegally transferred to their home countries to be executed ... hundreds, or thousands, of such persons – the number still has not been finally determined – were abducted, tortured, and murdered in Condor operations".