Perón's resignation on 8 October 1945 was the result of loss of support in the army commanders. Based on the letter sent to Eva Duarte from Martín García Island, it can be considered at the time Perón was determined to retire from politics. The mobilization of 17 October had two immediate effects: it forced Perón to return to the political struggle, and persuaded the Army to turning in his favor before those among the military leadership opposed to him could organize their colleagues against him.
