John Foster Dulles (February 25, 1888  May 24, 1959) served as U. S. Secretary of State under President Dwight D. Eisenhower from 1953 to 1959. He was a significant figure in the early Cold War era, advocating an aggressive stance against communism throughout the world. He advocated support of the French in their war against the Viet Minh in Indochina and it is widely believed that he refused to shake the hand of Zhou Enlai at the Geneva Conference in 1954. He also played a major role in the Central Intelligence Agency operation to overthrow the democratic Mossadegh government of Iran in 1953 and the democratic Arbenz government of Guatemala in 1954.