In the disaster at Shiloh, Union General Ulysses S. Grant sees victory. On the night of April 6, 1862, Grantís beleaguered army along the Tennessee River is reinforced. The next morning, Grantís counterattack leads to victory. The defeated Confederate force of 40-thousand retreats south to Corinth, Mississippi. At Shiloh, the Confederates lose arguably their best opportunity to change the outcome of the war. The shocking combined casualties of 24-thousand men is more than in all the wars fought to that date in the United States.