Pedro Eugenio Aramburu Silveti was an Argentine Army general. He was a major figure behind the Revolución Libertadora, the military coup against Juan Perón in 1955. He became dictator of Argentina, serving from November 13, 1955 to May 1, 1958. He was kidnapped by the radical organization Montoneros on May 29, 1970 and murdered, allegedly in retaliation for the June 1956 execution of General Juan José Valle, an army officer associated with the Peronist movement, and 26 Peronist militants after a botched attempt to overthrow his regime.