infantry's withdrawal from South Mountain, delaying the U.S. Army advance to Sharpsburg, Maryland, before the Battle of Sharpsburg around Antietam Creek, and covering his army's recrossing of the Potomac River into Virginia. Stuart's cavalry made its second ride around the U.S. Army in the Chambersburg Raid before returning in time to screen Robert E. Lee's movement towards Fredericksburg, where the cavalry defended the extreme right of the Confederate line. Fitzhugh Lee conducted the cavalry action of Kelly's Ford (March 17, 1863) with skill and success, where his 400 troopers captured 150 men and horses with a loss of only 14 men. In the Battle of Chancellorsville in May 1863, Lee's reconnaissance found that the U.S. Army's right flank was "in the air", which allowed the successful flanking attack by Maj. Gen. Thomas Jonathan "Stonewall" Jackson, a movement led by Fitzhugh Lee's cavalry. After Chancellorsville, Lee was incapacitated by inflammatory rheumatism, missing a month of action, which included the significant cavalry operations at the Battle of Brandy Station. He recovered in time to lead a brigade in Jeb Stuart's third ride around the U.S. Army, in the early days of the Gettysburg Campaign, with his most significant contribution being at the Battle of Carlisle. During the Battle of Gettysburg, his brigade fought unsuccessfully at East Cavalry Field. Stuart's report singled out no officer in his command for praise except Fitz Lee, who he said was "one of the finest cavalry leaders on the continent, and richly [entitled] to promotion." During the withdrawal from Gettysburg, Lee's brigade held the fords at Shepherdstown to prevent the U.S. Army from following across the Potomac River. Lee was promoted to major general on August 3, 1863, and continued to serve under Maj. Gen. Stuart's command, despite Stuart not receiving a promotion following his questionable conduct in the Gettysburg Campaign. While his uncle maneuvered the Army of Northern Virginia back into central Virginia, Lee's division launched a successful ambush on U.S. Army cavalry at the Battle of Buckland Mills that fall. In the Overland Campaign the following spring, Lee was constantly employed as a divisional commander under Stuart. Following the Battle of the Wilderness, Lee's cavalry division played a pivotal role in impeding the U.S. Army in its race to the Battle of Spotsylvania Court House. While fighting at Spotsylvania, Gen. Stuart was detached from the army to thwart U.S. cavalry commander Phillip Sheridan's raid on