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
General officers in the Confederate States Army combat, to be the senior general officer in the CSA. That seniority strained the relationship between Joseph E. Johnston and Jefferson Davis. Johnston considered himself the senior officer in the Confederate States Army and resented the ranks that President Davis had authorized. However, his previous position in the U.S. Army was staff, not line, which was evidently a criterion for Davis regarding establishing seniority and rank in the subsequent Confederate States Army. On February 17, 1864, legislation was passed by the Congress to allow President Davis to appoint an officer to command the Trans-Mississippi Department in the Far West, with