Ulysses S. Grant fought the Civil War.
The Battle of Shiloh , also known as the Battle of Pittsburg Landing , was a major battle in the Western Theater of the American Civil War , fought April 6 -- 7 , 1862 , in southwestern Tennessee . Robert E. Lee . During the first year of the Civil War , Lee served as a senior military adviser to President Jefferson Davis . Lee surrendered his entire army to Ulysses S. Grant at Appomattox Court House on April 9 , 1865 . Ulysses S. Grant . Grant confronted Robert E. Lee in a series of bloody battles , trapping Lee 's army in their defense of Richmond .