Name the President of Argentina who was overthrown during the 1976 coup d'état, which disrupted a planned guerrilla operation by the PVP of Uruguay which included exiles in Argentina?
1976 Argentine coup d'état The 1976 Argentine coup d'état was a right-wing coup that overthrew Isabel Perón as President of Argentina on 24 March 1976. A military junta was installed to replace her; this was headed by General Jorge Rafael Videla, Admiral Emilio Eduardo Massera and Brigadier-General Orlando Ramón Agosti. The junta took the official name of "National Reorganization Process", and remained in power until December 10, 1983.
Gabriel Valdés Gabriel Valdés Subercaseaux (July 3, 1919 – September 7, 2011) was a Chilean politician, lawyer and diplomat. Valdes served as the Minister of Foreign Affairs of Chile under President Eduardo Frei Montalva from 1964 to 1970. A vocal opponent of the military dictatorship of Augusto Pinochet, which held power from 1973 to 1990, Valdés worked for Chile's transition to democracy.