The "Dirty War" () was part of Operation Condor, which included the participation of other right-wing dictatorships in the Southern Cone. The Dirty War involved state terrorism in Argentina and elsewhere in the Southern Cone against political dissidents, with military and security forces employing urban and rural violence against left-wing guerrillas, political dissidents, and anyone believed to be associated with socialism or somehow contrary to the neoliberal economic policies of the regime. Victims of the violence in Argentina alone included an estimated 15,000 to 30,000 left-wing activists and militants, including trade unionists, students, journalists, Marxists, Peronist guerrillas, and alleged sympathizers. Most of the victims were casualties of state terrorism. The opposing guerrillas' victims numbered nearly 500–540 military and police officials and up to 230 civilians. Argentina received technical support and military aid from the United States government during the Johnson, Nixon, Ford, Carter, and Reagan administrations.