Second Corps, Army of Northern Virginia General Gustavus W. Smith. This unit was also known as the Second Division and was eventually subsumed into general Robert E. Lee's Army of Northern Virginia as a reserve in Maj. Gen. D. H. Hill's Division. When Lee was able to reorganize his army after finishing battles with Union Maj. Gen. George B. McClellan on the peninsula, he created this corps under the command of Lieutenant General Jackson, along with a sister corps under Lt. Gen. James Longstreet. Lee's reorganization was based on his evaluation of the performance of his division commanders during the Seven Days Campaign. General Jackson commanded
Army of Northern Virginia and James Longstreet as division commanders. Beauregard quarreled with Johnston and was transferred to the Western theater over the winter months. Jackson was sent to the Shenandoah Valley in October 1861, initially with his own old Stonewall Brigade and later with two other brigades from Western Virginia. Several newly arrived brigades were added to Johnston's army in late 1861-early 1862. When the Peninsula Campaign began, Johnston took his army down to the Richmond environs where it was merged with several smaller Confederate commands, including a division led by D.H. Hill as well as Benjamin Huger's Department of Norfolk, John Magruder's