 Complete the following phrase:  Battery H, 1st Missouri Light Artillery Regiment was an artillery battery unit from Missouri that served in the Union Army during the American Civil War. The 1st Missouri Light Artillery Regiment was created on 1 September 1861. Battery H fought at Fort Henry, Fort Donelson, Shiloh, 1st Corinth, and 2nd Corinth in 1862. The battery performed mostly garrison duty in 1863. The unit was in action in the Atlanta campaign and 