Don Carlos Buell’s Federal army secures Louisville, Kentucky, from Confederate capture, but the Lincoln administration receives several reports critical of Buell’s leadership.
Braxton Bragg’s Confederate army enters Kentucky as thousands of men volunteers to stop the Confederates from crossing the Ohio River and invading the North.
The Confederate incursion into Kentucky continues, with Edmund Kirby Smith’s forces taking Lexington and the state capital of Frankfort.
Edmund Kirby Smith’s Confederate army confronts a small Federal force in the first full-scale battle of Smith’s incursion into Kentucky.
One Confederate army leaves Chattanooga and begins moving north toward Kentucky, while another is already in Kentucky and preparing for battle.
Edmund Kirby Smith begins the Confederate incursion into Kentucky as the political turmoil in that state continues.