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
Departments of the Continental Army "magazines" (supply depots) of the Quartermaster General's Department, or hospitals of the Hospital Department. The militia in a department was usually at the disposal of the department commander. The Continental troops in a department constituted its garrison. If the garrison was sufficiently large, the units might be assembled into a field army. In this case the commander of the territorial department and the commander of the field army would be one and the same officer. Thus, the commanding general of the Northern Department was also commanding general of the Northern Army, and the commanding general of the Southern Department was