Shiloh National Military Park commemorates the Battle of Shiloh, fought April 6-7, 1862 in Tennessee between Confederate and Union forces. The battle began as a surprise Confederate attack on encamped Union troops, who were pushed back initially but reinforced by nightfall. Heavy losses were suffered by both sides over the two days of fighting, with the Union mounting a counter-offensive and driving the Confederates from the field on the second day. Historical markers and monuments help visitors understand the locations and events of this pivotal Civil War battle.