25 The Signal Corps regiment was established per DAGO 21, 30 May 1986. The details of the Signal Corps' regimental plan are discussed in Kathy Roe Coker, The Signal Corps and The U.S. Army Regimental System (Fort Gordon, Ga.: Office of the Command Historian, Nov 1989). See also AR 600-82, The U.S. Army Regimental System.