Confederate Army of the Shenandoah Harpers Ferry, Virginia (modern day West Virginia). To organize and train the companies, Virginia state commander Robert E. Lee initially appointed Thomas J. Jackson to command the post. Jackson formed five regiments of infantry and a battery of artillery from the various companies, forming the basis of the Stonewall Brigade. On May 15, Joseph E. Johnston replaced Jackson as commander of Harpers Ferry and continued to receive additional regiments from throughout the Confederacy. He would eventually have four brigades of infantry and an independent regiment of cavalry, the 1st Virginia Cavalry commanded by J. E. B. Stuart. In mid-June, forces
Second Corps, Army of Northern Virginia Fredericksburg and in the subsequent series of engagements along the Rappahannock River. The corps' finest moment came during the Battle of Chancellorsville when Jackson led the famous enveloping left flank attack that routed much of Maj. Gen. Joseph Hooker's Federal Army of the Potomac. However, the subsequent loss of Jackson was devastating to Lee and the Army of Northern Virginia, and is considered to be a turning point for Lee's ability to command the army without occasionally needing to personally see to the details of corps command. From May 2 to May 30, 1863, the Second Corps was commanded temporarily