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 Burnside's Bridge proved to be too much for Lee and his Confederate army. Luckily for Lee, the arrival of A.P. Hill's troops and the mixture of McClellan's and Burnside's sluggishness, saved Lee's Army of Northern Virginia and allowed them to barely hold off the Union in Maryland. Although the Army of Northern Virginia swelled and shrank over time, its units of organization consisted primarily of corps, earlier referred to as "wings" or "commands": The Army fought in a number of campaigns and battles, including: On April 9, 1865, the Army of Northern Virginia surrendered to the Army of the Potomac