The US Defense Department today released the names of four Arkansas soldiers killed in Taji, Iraq, on Saturday when mortar rounds hit their camp. The soldiers, assigned to the Army National Guard`s 39th Support Battalion, 39th Brigade Combat Team, 1st Cavalry Division, were identified as: Capt. Arthur L. Felder, 36, of Lewisville. (The military identified the home town as spelled "Louisville." The family said it was "Lewisville." Chief Warrant Officer Patrick W. Kordsmeier, 49, of North Little Rock. Staff Sgt. Billy J. Orton, 41, of Humnoke. Staff Sgt. Stacey C. Brandon, 35, of Hazen.