Who was the us president during ww11

Franklin D. Roosevelt was the President of the United States during WW II. But the sad part was that Franklin D. Roosevelt died before the war ended and in his place Harry Truman became the President of the United States of America. Franklin D. Roosevelt died just a month before Germany surrendered. He died in the month of April in the year 1945. President Truman was the lucky President to have seen the end of the war. So there was not one President from the start to the end of World War II. United States of America had two Presidents during this time.