The Battle of Shiloh, also known as the Battle of Pittsburg Landing, was a major battle in the American Civil War fought on April 6–7, 1862. The fighting took place in southwestern Tennessee, which was part of the war's western theater. Two Union armies combined to defeat the Confederate Army of Mississippi. Major General Ulysses S. Grant was the Union commander, while General Albert Sidney Johnston was the Confederate commander until his battlefield death, when he was replaced by his second-in-command, General P. G. T. Beauregard. Though victorious, the Union army had more casualties than the Confederates, and with an overall total of almost 24,000 injuries and fatalities, it was one of the bloodiest battles in the entire war. This chromolithograph of the Battle of Shiloh was produced by American illustrator Thure de Thulstrup and printed by L. Prang & Co. in Boston in 1888.Illustration credit: Thure de Thulstrup; restored by Adam Cuerden