Who succeeded Roosevelt as president upon his death World War 2?

Harry S. Truman succeeded Franklin D. Roosevelt as president upon Roosevelt's death on April 12, 1945, during World War II. Truman, who was serving as vice president at the time, took office and continued to lead the nation through the final months of the war. His presidency saw significant decisions, including the use of atomic bombs on Japan, which ultimately contributed to the war's conclusion.