Ulysses S. Grant was in the American 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 . The Chattanooga Campaign was a series of maneuvers and battles in October and November 1863 , during the American Civil War . Ulysses S. Grant . Historians have hailed Grant 's military genius , and his strategies are featured in military history textbooks , but a minority contend that he won by brute force rather than superior strategy . Ulysses S. Grant was the most acclaimed Union general during the American Civil War and was twice elected President . The Vicksburg Campaign was a series of maneuvers and battles in the Western Theater of the American Civil War directed against Vicksburg , Mississippi , a fortress city that dominated the last Confederate-controlled section of the Mississippi River .