rfare against the military, the Dirty War. Levingston was then replaced by Alejandro Agustín Lanusse, who began negotiations to return to democracy and end the proscription of Peronism. Initially, he sought to allow Peronism but not the return of Juan Perón himself (who was living in Spain) with an agreement stipulating presidential candidates reside in Argentina as of 25 August. Thus, the Peronist candidate was not Perón but Héctor José Cámpora, who won the elections by the 49.59%.
The return of Peronism to power saw violent disputes between its internal factions: right-wing union leaders and left-wing youth from montoneros. The return of Perón to the country generated an armed conflict, the Ezeiza massacre. Overwhelmed by political violence, Cámpora and his vice-president resigned, promoting new elections so Perón could become president. Perón was elected, with his wife Isabel as vice-president, but before taking office the Montoneros murdered the union leader José Ignacio Rucci, with close ties to Perón. Perón expelled them from Plaza de Mayo and from the party, and they became once again a clandestine organization. José López Rega organized the Argentine Anticommunist Alliance (AAA) to fight against them and the ERP. Perón died shortly after, and his wife took office. The AAA maintained operations against the guerrillas, which increased their power. The Operativo Independencia stopped an attempt to capture and secede territories of Tucumán. A decree ordered the military to "annihilate the subversion". The military made another coup d'état, in March 1976.
The National Reorganization Process closed the Congress, removed the members of the Supreme Court, and banned political parties, unions, student unions, etc. It also intensified measures against ERP and Montoneros, who had kidnapped and murdered people almost weekly since 1970. The military resorted to the forced disappearance of suspected members of the guerrillas, and began to
