Battle of Glendale - Background

Background

The Seven Days Battles began with a Union attack in the minor Battle of Oak Grove on June 25, 1862, but McClellan quickly lost the initiative as Lee began a series of attacks at Beaver Dam Creek (Mechanicsville) on June 26, Gaines's Mill on June 27, the minor actions at Garnett's and Golding's Farm on June 27 and June 28, and the attack on the Union rear guard at Savage's Station on June 29. McClellan's Army of the Potomac continued its retreat toward the safety of Harrison's Landing on the James River.

After Gaines's Mill, McClellan left his army with no clear instructions on routes of withdrawal and without naming a second-in-command. The bulk of the V Corps (less McCall), under Brig. Gen. Fitz John Porter, moved to occupy Malvern Hill, while the remaining four corps of the Army of the Potomac were essentially operating independently in their fighting withdrawal. Most elements of the army had been able to cross White Oak Swamp Creek by noon on June 30. About one third of the army had reached the James River, but the remainder was still marching between White Oak Swamp and Glendale. (Glendale was the name of a tiny community at the intersection of the Charles City Road and the Quaker Road, or Willis Church Road, which led over Malvern Hill to the James River.) After inspecting the line of march that morning, McClellan rode south and boarded the ironclad USS Galena on the James.

Lee ordered his Army of Northern Virginia to converge on the retreating Union forces, bottlenecked on the inadequate road network. The Army of the Potomac, lacking overall command coherence, presented a discontinuous, ragged defensive line. Stonewall Jackson was ordered to press the Union rear guard at the White Oak Swamp crossing while the largest part of Lee's army, some 45,000 men, would attack the Army of the Potomac in mid-retreat at Glendale, about 2 miles (3.2 km) southwest, splitting it in two. Huger's division would strike first after a three-mile (5 km) march on the Charles City Road, supported by Longstreet and A.P. Hill, whose divisions were about 7 miles (11 km) to the west, in a mass attack. Holmes was ordered to cannonade retreating Federals near Malvern Hill.