York, was seriously wounded and lost an arm. At the regimental level, 20 commanding officers were mortally wounded, wounded, or captured. Lee, commander of Early's cavalry, was seriously wounded. Sheridan's Army of the Shenandoah lists 5,018 casualties in the official report; including 697 killed, 3,983 wounded, and 338 captured or missing. The XIX Corps had 2,074 casualties, which includes 1,527 from Grover's 2nd Division. The high casualties for Grover reflect the Confederate counterattack by Gordon's Division. Keifer's Second Brigade of Ricketts' Division had the most casualties in the VI Corps. Among the army's leaders, the death of Russell and wounding of Upton were significant losses. Aftermath Beginning at 5:00am on September 20, Sheridan's army moved south to the north side of Strasburg in a march that took all day. Two days later at Fisher's Hill, Crook flanked and turned Early's left in a sneak attack, and Early's army was again fleeing south. Sheridan wrote that the Battle of Fisher's Hill "was, in a measure, a part of the battle of the Opequon; that is to say, it was an incident of the pursuit resulting from that action." Performance and impact One historian wrote that the Third Battle of Winchester was "the first one of the war in which cavalry, artillery and infantry were all used concurrently and to the best possible advantage, each according to its own nature and traditions." Wilson agreed, writing that the battle was the first where "cavalry was properly handled in cooperation with the infantry". At the time, the battle was "the bloodiest battle of the Shenandoah Valley", and caused "more casualties than the entire 1862 Valley Campaign". Reflecting during and after the war, multiple soldiers on each side believed that this battle had the hardest fighting of the war. Early's defeat was the first for a Confederate general in the Shenandoah Valley. Although he lost the battle, he handled his small army with "tactical skill and daring", making especially good use of his infantry and artillery. Sheridan made mistakes by funneling too many troops through the Berryville Canyon and holding Crook's army too far away while it was in reserve. Sheridan deserves credit for his perseverance and his ability to inspire his men, but the decisive maneuver—the attack on Early's left flank followed by the cavalry charge from the north—was implemented by Crook, not Sheridan. Aside from his ability to inspire his troops, Sheridan's contribution