The June 1966 coup established General Juan Carlos Onganía as de facto president, supported by several leaders of the General Confederation of Labour (CGT), including the general secretary Augusto Vandor.
While preceding military coups were aimed at establishing temporary, transitional juntas, the Revolución Argentina headed by Onganía aimed at establishing a new political and social order, opposed both to liberal democracy and to Communism, which would give the Armed Forces of Argentina a leading political and economic role.