The truman Presidency: Harry S Truman Was the 33rd American President and served in office from 1945-1953. The least Popular US president on record yet is now regarded as one of the twentieth Century’s more successful leaders. Truman never went to university. The Presidency of Harry Truman spanned the period in United States history that Encompasses the end of World War 2 and the events of the Cold War Era - the age Of the Space Race and the Cold War Arms Race. President Harry Truman Represented the Democratic political party. Authorized Atomic Bombs to be Dropped on Hiroshima and Nagasaki (August 6 and 9, 1945) and WW2 ended September 2, 1945 but the Cold War began, and the Iron Curtain fell. The other Main events that occurred during the time that Harry Truman was president Included the creation of the United Nations (was founded on 24 October 1945 to work for world peace and Security), the Nuremburg Trials, the Truman Doctrine (1947) (The Truman Doctrine was based on a speech made to Congress On March 27, 1947 by President Harry Truman in which he pledged to support Other countries in their struggle against communism), the Taft-Hartley Act (was passed by Harry Truman on June 23, 1947 During the wave of anti-communist hysteria to curb the power of the Unions by Outlawing the 'closed shop' system and opening up jobs to non-union members), the NATO Treaty (1949) (the North Atlantic Treaty Organization, was formed in Washington, D.C. On April 4, 1949 As a mutual Defense pact aimed at containing Soviet expansion), McCarthyism (The term McCarthyism was Applied to the notorious Joe McCarthy Communist Witch hunts) and the outbreak of the Korean War (1950-1953) (began when North Korea invaded South Korea. The Korean War was Fought between the Soviet-backed communist North Korea and China against the United States and the UN-backed South Korea) . Harry Truman died of cardiovascular Collapse on December 26, 1972, aged 88.