On October 8, 1862, Irish-born Confederate Brigadier General Patrick Cleburne commands a brigade at the Battle of Perryville, (Kentucky) in the American Civil War. His brigade is part of the army of General Braxton Bragg. Encouraged by Jefferson Davis, Bragg invades Kentucky in August. On August 30, at the Battle of Richmond, Cleburne receives a very painful injury when a ball passes through his open mouth and out his left cheek, taking several teeth with it. However, less than a month later, he is back with his command in time for the crucial battle at Perryville.

The largest and last major battle of the Confederate Heartland Offensive (Kentucky Campaign), the Battle of Perryville, pits Bragg’s Confederate army against General Don Carlos Buell‘s Union army. While Bragg wins the battle tactically, Confederate forces retreat from the battlefield and end the campaign, leaving Kentucky under Union control for the rest of the war.

In conjunction with General Edmund Kirby Smith, Bragg invades the Commonwealth of Kentucky in August 1862. While the Confederate forces see early success in the Battles of Richmond and Munfordville, they ultimately are unable to achieve their larger goal of taking control of the state. By late October, Bragg and Smith’s armies retreat into Tennessee.

On October 7, 1862, the 55,000-man Union Army of the Ohio under the command of General Buell converges on the small crossroads town of Perryville, Kentucky, in three columns. Union forces first skirmish with Confederate cavalry on the Springfield Pike before the fighting continues on Peters Hill as the gray-clad infantry arrive. Based on the intelligence Bragg receives from his cavalry, he believes that he faces only a small portion of General Buell’s army, not the main body. Both sides settle in for the coming battle that would decide the fate of Kentucky.

In the early morning hours of October 8, 1862, fighting begins around Peters Hill as a Union division advances up the pike searching for water, halting just before the Confederate line. General Bragg orders his army to attack the supposedly isolated Union force, but it is noon before the assault gets underway. By that point, a new Union Corps, numbering about 13,000, arrives on the field further to the Union left, led by General Alexander M. McCook. The Confederates shift their focus on this isolated corps, believing it to be the force they faced earlier in the morning.

In the afternoon, the Confederate attacks open up. Bragg plans to commit three divisions. Due to the surprise of the Confederates, the plan works. Many of the Union soldiers in McCook’s corps are inexperienced and have been in the service for less than three months. For over five hours, McCook’s corps struggle to survive.

Cleburne’s brigade enters the battle at about 3:40 p.m. Cleburne’s horse, Dixie, is killed by an artillery shell, which also wounds Cleburne in the ankle, but he keeps his troops moving forward. As they advance up the slope, they are subjected to Confederate artillery fire. Cleburne later surmises that the friendly fire is caused by his men wearing blue uniform trousers, which had been captured from Union soldiers at Richmond. On Cleburne’s left, Brigadier General Daniel W. Adams‘s brigade joins the attack against the 15th Kentucky, which had been reinforced by three companies of the 3rd Ohio. The Union troops retreat to the west toward the Russell House, McCook’s headquarters.

Meanwhile, the majority of the veteran Union forces are under orders not to engage because General Buell, only two miles from the main fight, cannot hear the battle raging. The acoustic shadow dissipates in the area’s rolling hills. In the fighting, the Confederates see much success all across the battlefield at places like Open Knob, where they capture seven Union cannons, Loomis’s Heights, and the H. P. Bottoms Farm. They manage to push back the Union corps over a mile from their positions. Eventually, the Union troops are reinforced by two brigades that stabilize their line, bringing the Confederate attack to a halt. Later, a Confederate brigade assaults the Union force on the Springfield Pike but is repulsed and falls back into Perryville. The Union forces pursue, and skirmishing occurs in the streets in the evening before dark.

After five hours of brutal fighting, on October 8, 1862, night falls upon the battlefield at Perryville. During the night, word finally reaches General Bragg of the true nature of what lay before him. Rather than facing a small Union force, he faces Gen. Buell’s entire army, the majority of which do not see combat. Weighing his options, Bragg, short of men and supplies, withdraws during the night and, after pausing at Harrodsburg, continues the Confederate retreat by way of the Cumberland Gap into East Tennessee.

Cleburne performs a final valuable service to the Confederate cause during Bragg’s retreat. He saves thousands of rifles, cartridges, and other supplies by using stragglers to drag the supply-wagon train to safety.

The Confederate offensive is over and the Union controls Kentucky.