With Eisenhower's leadership and Dulles' direction, CIA activities increased under the pretense of resisting the spread of communism in poorer countries; the CIA in part deposed the leaders of Iran in Operation Ajax, of Guatemala through Operation Pbsuccess, and possibly the newly independent Republic of the Congo (Léopoldville). In 1954 Eisenhower wanted to increase surveillance inside the Soviet Union. With Dulles' recommendation, he authorized the deployment of thirty Lockheed U-2's at a cost of $35 million. The Eisenhower administration also planned the Bay of Pigs Invasion to overthrow Fidel Castro in Cuba, which John F. Kennedy was left to carry out."