Truman, Harry S.

The 33rd president of the United States, Harry Truman was vice president under Franklin D. Roosevelt and succeeded him as president after FDR's death in 1945. He was subsequently re-elected for another term, serving until 1953. Truman authorized the use of the atomic bomb against Japan in August 1945, which ended the war in the Pacific. Truman championed expanded immigration quotas for DPs, pushing Congress to pass the Displaced Persons Act in 1948.