Harry S. Truman was the 33rd president of the United States, serving from 1945 to 1953. As the 34th vice president in 1945, he assumed the presidency upon the death of Franklin D. Roosevelt in April. Truman set up the Marshall Plan to rebuild the badly damaged economy of Western Europe. He established the Truman Doctrine and supported the founding of NATO to contain the expansion of Soviet communism. A member of the Democratic Party, he proposed numerous New Deal coalition liberal domestic reforms, but few were enacted by the conservative coalition that dominated the United States Congress.