Harry S. Truman (1884–1972) became president on 12 April 1945 upon the death of Franklin D. Roosevelt, having served only 82 days as Vice President. A Missouri Democrat and former senator, Truman led the United States through the final months of World War II and the opening phase of the Cold War.
His early presidency was defined by consequential decisions in rapid succession. He represented the U.S. at the Potsdam Conference (July–August 1945) alongside Stalin and Churchill (later Attlee), and authorized the use of atomic weapons against Hiroshima and Nagasaki in August 1945. He signed the United Nations Charter ratification and supported the creation of the Bretton Woods institutions.
Truman is most associated with the architecture of containment. Key initiatives include:
- The Truman Doctrine (announced to Congress, 12 March 1947), pledging support to Greece and Turkey against communist pressure.
- The Marshall Plan (European Recovery Program, 1948), channeling roughly $13 billion to Western European reconstruction.
- The National Security Act of 1947, which created the Department of Defense, the CIA, and the National Security Council.
- Recognition of the State of Israel on 14 May 1948, eleven minutes after its declaration.
- The Berlin Airlift (1948–49) in response to the Soviet blockade.
- Founding of NATO via the North Atlantic Treaty, signed 4 April 1949.
- Commitment of U.S. forces to the Korean War under UN Security Council authorization (June 1950), and the controversial dismissal of General Douglas MacArthur in April 1951.
Domestically, Truman issued Executive Order 9981 (26 July 1948) desegregating the U.S. armed forces, and pursued a "Fair Deal" reform agenda. Deeply unpopular by 1952 due to the Korean stalemate and corruption allegations, he declined to seek re-election. Historians have since reassessed him favorably for his foreign-policy framework, which structured U.S. grand strategy for four decades.
Example
In March 1947, Truman asked Congress for $400 million in aid to Greece and Turkey, articulating what became known as the Truman Doctrine of containing Soviet expansion.
Frequently asked questions
Truman recognized Israel de facto on 14 May 1948, minutes after its declaration of independence, over objections from his own State Department. His decision reflected humanitarian concerns about Jewish refugees, domestic political considerations, and his personal relationship with advisor Clark Clifford and Zionist leader Chaim Weizmann.
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