The Battle of Cedar Mountain, also known as Slaughter's Mountain or Cedar Run, took place on August 9, 1862, in Culpeper County, Virginia, as part of the American Civil War. Union forces under Maj. Gen. Nathaniel P. Banks attacked Confederate forces under Maj. Gen. Thomas J. "Stonewall" Jackson near Cedar Mountain as the Confederates marched on Culpeper Court House to forestall a Union advance into central Virginia. After nearly being driven from the field in the early part of the battle, a Confederate counterattack broke the Union lines resulting in a Confederate victory. The battle was the first combat of the Northern Virginia campaign. Background On June 26, Maj. Gen. John Pope was placed in command of the newly constituted Union Army of Virginia. Pope deployed his army in an arc across Northern Virginia. Its right flank, under Maj. Gen. Franz Sigel, was positioned at Sperryville on the Blue Ridge Mountains, its center, under Maj. Gen Nathaniel P. Banks, was located at Little Washington and its left flank under Maj. Gen. Irvin McDowell was at Falmouth on the Rappahannock River. Part of Banks's corps, Brig. Gen. Samuel W. Crawford's brigade and Brig. Gen John P. Hatch's cavalry, were stationed beyond the Union line, at Culpeper Court House. General Robert E. Lee responded to Pope's dispositions by dispatching Major General Thomas J. "Stonewall" Jackson with 14,000 men to Gordonsville on July 13. Jackson was later reinforced with another 10,000 men by Maj. Gen. A.P. Hill's division on July 27. Lee intended to have Jackson strike Pope's Army of Virginia before the Army of the Potomac could reinforce them. On August 6, Pope marched his forces south into Culpeper County with the objective of capturing the rail junction at Gordonsville, in an attempt to draw Confederate attention away from Maj. Gen. George B. McClellan's withdrawal from the Virginia Peninsula. In response to this threat, Jackson chose to go on the offensive, attacking Pope's vanguard under Banks, before the entire Army of Virginia could be brought to bear on his position at Gordonsville. After defeating Banks, he then hoped to move on Culpeper Court House, north of Gordonsville and the focal point of the Union arc about Northern Virginia, to keep Pope's army from uniting. This would allow Jackson to fight and hopefully defeat each of the Union Corps separately, as he had done during the Valley Campaign. Accordingly, Jackson set out on