The Peruvian Armed Forces had been opposed to the Prado administration as it made reformist measures focused on civilian life, which resulted with the military receiving less support from the traditional elites and the Catholic Church.

[1] In the general elections of 1962, called for June 10 by Peruvian president Manuel Prado Ugarteche, were presented as candidates for the presidential chair César Pando Egúsquiza of the National Liberation Front, Luciano Castillo Colonna of the Socialist Party of Peru, Alberto Ruiz Eldredge for the Progressive Social Movement, Héctor Cornejo Chávez of the Christian Democracy, former President Manuel A. Odría of the Odriist National Union, the architect Fernando Belaúnde for Popular Action and Víctor Raúl Haya de la Torre of the Peruvian Aprista Party, these last three being the applicants with the greatest possibilities.

[2][3][4] During the electoral process and the counting of the votes, the press and the Armed Forces denounced a series of irregularities before the National Jury of Elections.

Given the situation, Haya de la Torre sought Belaúnde's support, but the architect declined pending the JNE's resolution in front of the allegations of fraud.

[1] Haya de la Torre was vetoed by the Armed Forces that threatened to rise up if the Aprista leader was chosen as the winner, so he pragmatically agreed with Odría.