Dulles became exceedingly concerned that Guatemala is slowly engaging a communist regime. Already Arbenz already was gaining support of the communist dictators of the East. This truly became apparent of Guatemala shifting to a “red” government when President Arbenz made a deal with the Soviets from Czechoslovakia in purchasing military armaments. Soon, the Eisenhower administration and congress approved to allow the CIA to plan a covert mission to overthrow the communist regime. The CIA and the involvement of US Ambassador John Peurifoy organized a counterrevolution called PBSuccess which included getting some of the military leaders of Guatemala to help in overthrowing the leader (some of them were exiles). Some of the counterrevolution included some psychological warfare. The covert mission PBSuccess was a success, when in June of 1954, Arbenz was forced to resign, and was succeeded by the Dictator Carlos Castillo