article: Special Order 191
links: Middletown, Maryland Confederate States of America Second Battle of Bull Run Robert E. Lee American Civil War Harpers Ferry Armory Army of Northern Virginia James Longstreet Union Army France Corporal Manassas, Virginia Maryland Campaign Potomac River Great Britain Stonewall Jackson Martinsburg, West Virginia Mexican–American War Harpers Ferry, West Virginia Federal government of the United States Northern United States Washington, D.C. J.E.B. Stuart Winfield Scott United States Military Academy at West Point Lovettsville, Virginia Daniel Harvey Hill Hagerstown, Maryland Military camp George B. McClellan Frederick, Maryland Maryland Military intelligence Boonsboro, Maryland Ammunition Sharpsburg, Maryland Major general Writing Winchester, Virginia