Harry S. Truman was an American politician who served as the 33rd President of the United States, coming to office on the death of Franklin D. Roosevelt in the last months of World War II. He is known for launching the Marshall Plan to rebuild the economy of Western Europe, for leading the Cold War against Soviet communism through the Truman doctrine and NATO, and for engaging in a stalemate 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 presidential authority to mandate equal treatment for blacks in the military and put civil rights on the national political agenda. Truman served as a United States Senator from Missouri and briefly as Vice President before he succeeded to the presidency on April 12, 1945 upon the death of Franklin D. Roosevelt. He presided over an unexpected surge in economic prosperity as America sought readjustment after long years of depression and war. His political coalition was based on the white South, labor unions, farmers, ethnic groups, and traditional Democrats across the North. Truman was able to rally these groups of supporters during the 1948 presidential election and win election to a presidential term in his own right. Truman was born in Lamar, Missouri, and spent most of his youth on his family's 600-acre farm near Independence. In the last months of World War I, he served in combat in France as an artillery officer with his National Guard unit. After the war, he briefly owned a haberdashery in Kansas City, Missouri, and joined the Democratic Party and the political machine of Tom Pendergast. Truman was first elected to public office as a county official in 1922, and then as a U.S. Senator in 1934. He gained national prominence as chairman of the Truman Committee, formed in March 1941, which exposed waste, fraud, and corruption in Federal Government wartime contracts. Germany surrendered on Truman's birthday, just a few weeks after he assumed the presidency, but the war with Imperial Japan raged on and was expected to last at least another year. Truman approved the use of atomic bombs to end the fighting and to spare the hundreds of thousands of American and Japanese lives that would inevitably be lost in the planned invasion of Japan and Japanese held islands in the Pacific. Although this decision and the numerous issues that arose as a result of it remain the subject of debate to this day, it was one of the principal factors that forced Japan's unconditional surrender. Truman's presidency was a turning point in foreign affairs, as the United States engaged in an internationalist foreign policy and renounced isolationism. Truman helped found the United Nations in 1945, issued the Truman Doctrine in 1947 to contain Communism, and got the $13 billion Marshall Plan enacted to rebuild Western Europe. The Soviet Union, a wartime ally, became a peacetime enemy in the Cold War. Truman oversaw the Berlin Airlift of 1948 and the creation of NATO in 1949. He was unable to stop Communists from taking over China. When communist North Korea invaded South Korea in 1950, he sent U.S. troops and gained UN approval for the Korean War. After initial successes in Korea, however, the UN forces were thrown back by Chinese intervention, and the conflict was stalemated throughout the final years of Truman's presidency. On domestic issues, bills endorsed by Truman often faced opposition from a conservative Congress dominated by the Southern legislators, but his administration was able to successfully guide the American economy through the post-war economic challenges. Truman maintained that civil rights were a moral priority, and in 1948 submitted the first comprehensive civil rights legislation and issued Executive Orders to start racial integration in the military and federal agencies. Allegations were raised of corruption in the Truman administration, linked to certain cabinet members and senior White House staff; this became a central campaign issue in the 1952 presidential election, and helped account for Republican Dwight D. Eisenhower's electoral victory. Scholars, starting in 1962, ranked Truman's presidency as "near great"; since then he has ranked from 5th to 9th place from the top.

https://en.wikipedia.org/wiki/Harry_S._Truman