Thomas Sovereign Gates Jr. was an American politician and diplomat who served as Secretary of Defense from 1959 to 1961 and Secretary of the Navy from 1957 to 1959, both under President Dwight D. Eisenhower. During his tenure as Secretary of Defense, he established a task force to set nuclear target priorities. He also authorized U-2 reconnaissance flights, including the flight of Francis Gary Powers.
Later in his career, he served as the Chief of the U.S. Liaison Office in Beijing, appointed by President Gerald Ford.