Marxist Orthodoxy, Peronist Populism

Small Marxist guerrilla organizations known as the "People's Revolutionary army" (ERP) and the "Revolutionary Armed Forces" (FAR) also begin to take action. Both groups are inspired by the Cuban, Chinese, and Vietnamese experiences, but while the ERP remains faithful to Marxist orthodoxy, the FAR begins a process of approximating itself to the mass movement of Peronism.

Horacio Verbitsky's Confessions of an Argentine Dirty Warrior