Maj. Gen. Ulysses S. Grant had moved his army deep into Tennessee and was encamped at Pittsburg Landing on the west bank of the river, awaiting reinforcement from Buell's Army of the Ohio. Confederate forces under Generals Albert Sidney Johnston and P.G.T. Beauregard launched a surprise attack on Grant there. What followed was the bloodiest day's fighting of the war to that time.
click here to see where to watch or .
Ready to Watch Greatest Battles Of The Civil War, Season 1, Episode 1?