Ulysses S. Grant (born Hiram Ulysses Grant; April 27, 1822 – July 23, 1885) was the 18th president of the United States (1869–1877) following his success as military commander in the American Civil War. Under Grant, the Union Army defeated the Confederate military; the war, and secession, ended with the surrender of Robert E. Lee's army at Appomattox Court House. As president, Grant led the Radical Republicans in their effort to eliminate vestiges of Confederate nationalism and slavery, protect African American citizenship, and defeat the Ku Klux Klan. In foreign policy, Grant sought to increase American trade and influence, while remaining at peace with the world. Although his Republican Party split in 1872 as reformers denounced him, Grant was easily reelected. During his second term the