Hundreds Wounded

Campora is elected president on March 11. For his swearing-in ceremony on May 25, he invites Chilean President Salvador Allende and the Cuban Osvaldo Dorticos. His first decision is to free all the imprisoned guerrillas; this is unanimously approved by Congress, which also dissolves as unconstitutional a special tribunal created to try them. As they arrive from the country's various jails, the prisoners are given a hero's welcome in the provincial government houses. The FAR merges with the Montoneros into a single organization.
On June 20, Peron finally returns to the country. His private secretaryand one of Campora's ministers, Jose Lopez Rega, a former chief of policeand an astrologer, calls on unionists and members of the military to organize an armed contingent to be positioned on the stage above the crowd gathered near Ezeiza Airport during Peron's first public appearance in Argentina. The crowd begins to assemble the night before and is estimated at more than a million people. When the columns of the Peronist Youth approach, they are fired upon from above. The crowd scatters and at least thirteen people are killed and three hundred wounded by bullets.
Peron comes out against the Montoneros and forces Campora to resign. Raul Lastiri, Lopez Rega's son-in-law, assumes the presidency for aninterim period and calls new elections. On September 23, Peron is elected president for the third time, on a ticket completed by his wife Isabelita. Two days later, the Montoneros kill the general secretary of the General Confederation of Labor (CGT), Jose Rucci, a trade unionist, as one of those responsible for what happened in Ezeiza, but they do not claim responsibility for the attack in order not to enrage Peron. The ERP continues kidnapping U.S. businessmen and demanding ransom for them and attacking army facilities.

Horacio Verbitsky's Confessions of an Argentine Dirty Warrior