Henry Lewis Stimson was an American statesman, lawyer, and Republican Party politician. Over his long career, he emerged as a leading figure in U.S. foreign policy by serving in both Republican and Democratic administrations. He served as Secretary of War under President William Howard Taft, Secretary of State under President Herbert Hoover, and Secretary of War under Presidents Franklin D. Roosevelt and Harry S. Truman.
The son of the surgeon Lewis Atterbury Stimson, Stimson became a Wall Street lawyer after he had graduated from Harvard Law School. He served as a United States Attorney under President Theodore Roosevelt and prosecuted several antitrust cases. After he was defeated in the 1910 New York gubernatorial election, Stimson served as Secretary of War under Taft. He continued the reorganization of the United States Army that had begun under his mentor, Elihu Root. After the outbreak of World War I, Stimson became part of the Preparedness Movement. He served as an artillery officer in France after the United States entered the war. From 1927 to 1929, he served as Governor-General of the Philippines under President Calvin Coolidge.