John Foster Dulles was an American politician, lawyer, and diplomat who served as United States secretary of state under President Dwight D. Eisenhower from 1953 until his resignation in 1959. A member of the Republican Party, he was briefly a U.S. senator from New York in 1949. Dulles was a significant figure in the early Cold War era who pushed for an aggressive rollback campaign against communist regimes and their allies throughout the world. As United States Secretary of State in 1954, Dulles was architect of the Southeast Asia Treaty Organization. Wiki link