Guatemala
The CIA, on June 18, 1954, led the coup in Guatemala that overthrew the Communist-dominated regime of President Jacobo Arbenz Guzman. Frank G. Wisner, CIA. Deputy Director for Plans, had the major responsibility for carrying out the operation. CIA agents trained and supported the forces of Colonel Carlos Castillo-Armas who assumed power after the defeat of Arbenz. Agency support included the provision of CIA-piloted World War II fighter-bombers, as well as guns and ammunition.
In early 1960 President Dwight Eisenhower gave his approval to a CIA-sponsored project to train Cuban exiles for the purpose: of overthrowing Cuban leader Fidel Castro. The Guatemalan President, Miguel Ydigoras Fuentes, permitted the CIA to use his country for its training camp. In November 1960 a rebellion broke out in Guatemala against President Ydigoras. Because of his assistance to the CIA to that point the agency secretly came to his aid, sending its 8-26 bombers against the rebels. The insurgency was crushed and Ydigoras kept in power.
