Harry S. Truman (May 8, 1884 – December 26, 1972) was an American statesman who served as the 33rd President of the United States (1945–1953), taking the office upon the death of Franklin D. Roosevelt. A World War I veteran, he assumed the presidency during the waning months of World War II and the beginning of the Cold War.

• He is known for approving the atomic bombings of Hiroshima and Nagasaki and the Marshall Plan to rebuild the economy of Western Europe, the establishment of the Truman Doctrine and NATO against Soviet and Chinese communism, and for intervening in the Korean War.
• In domestic affairs, he was a moderate Democrat whose liberal proposals were a continuation of Franklin Roosevelt’s New Deal, but the conservative-dominated Congress blocked most of them.
• He used the veto power 180 times, more than any president since then, and saw 12 overridden by Congress; only Grover Cleveland and Franklin D. Roosevelt used the veto so often, and only Gerald Ford and Andrew Johnson saw so many veto overrides.
• He is the only world leader to have ever used nuclear weapons in war, desegregated the U.S. Armed Forces, supported a newly independent Israel, and was a founder of the United Nations.

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