The “Cordobazo” (1969) inaugurated a time of great popular mobilization to confront the dictatorship of Juan Carlos Onganía. Since then, thousands of young middle class joined the Peronism and guerrilla organizations. The Argentine Armed Forces weren´t outside of this process, and many junior officers, from different variants of nationalist thought, also linked the Peronism. This paper intends to reconstruct, based on oral sources, the career of many lieutenants and captains of the Argentine Army that linked with Peronist Movement (often clandestinely) during the last phase of the so-called “Argentine Revolution” (1966-1973).