Complex sentence: Stationed at Pensacola, Florida, during the first few months of the war, Chalmers was promoted to brigadier general on February 13,1862, and later fought under General Withers at the Battle of Shiloh on April 6.
Split into simpler sentences: Stationed at Pensacola, Florida, during the first few months of the war, Chalmers was promoted to brigadier general on February 13,1862. He fought under General Withers at the Battle of Shiloh on April 6.