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. Political scientist Guillermo O'Donnell named this type of regime "authoritarian-bureaucratic state",[1] in reference to the Revolución Argentina, the 1964–1985 Brazilian military regime, Augusto Pinochet's regime (starting in 1973).