The foreign policy of the Harry S. Truman administration was the foreign policy of the United States from April 12, 1945 to January 20, 1953, in the presidency of Harry S. Truman. The main issues were working with Allies to bring victory over Germany and Japan in Diplomacy of World War II, the aftermath of that war, and the beginning of the Cold War, as well as launching new international organizations such as the United Nations and the World Bank. Truman's presidency was a turning point in foreign affairs, as the United States engaged in an liberal internationalist foreign policy and renounced isolationism.