Question: The Battle of Stones River and Battle of Chickamauga were both fought during what?
Sentence (from "Battle of Stones River"): Although the battle itself was inconclusive, the Union Army's repulse of two Confederate attacks and the subsequent Confederate withdrawal were a much-needed boost to Union morale after the defeat at the Battle of Fredericksburg, and it dashed Confederate aspirations for control of Middle Tennessee.
Relevant evidence: No