Considering the casualties related to the engaged strengths of the armies (Union 22,000 and Confederates 16,000), the Battle of Perryville October 8, 1862 was one of the bloodiest battles of the Civil War. It was the largest battle fought in the state of Kentucky.
Confederate Gen. Braxton Bragg's Army of Mississippi won a tactical victory against primarily a single corps of Maj. Gen. Don Carlos Buell's Union Army of Ohio, but the battle is considered a strategic Union victory, sometimes called the Battle for Kentucky, since Bragg withdrew to Tennessee soon thereafter. The Union retained control of the critical border state of Kentucky for the remainder of the war. (From Wickipedia)
