Abraham Lincoln, 16th president of the United States, successfully prosecuted the Civil War to preserve the nation. He played in key role in passage of the Thirteenth Amendment, which officially ended slavery in America.
Franklin Roosevelt 32nd president of the United States, led allied forces during WWII to near victory following the US entry in December 1941 until his death in April 1945.
Dwight D Eisenhower the 34th president of the United States was elected and took office in final months of the Korean War. He fulfilled his campaign promise by negotiating an end to the war in July 1953.