On April 6, 1862, althought initially caught by surprise, union troops forced the Confederates to retreat in What battle?
A.Battle of Antietam
B. Battle of Shiloh
C. Seven day's battles
D. Second Battle of Bull Run
B: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.
