Unisex AOP - 1st Missile Bn, 81st Artillery 56th Artillery Group - Neu-Ulm Germany - Wiley Barracks, Firing Missile, Cold War Service.: 100% Polyester .: Light fabric (4. 0 oz yd (113 g m)) (6. 0 oz yd (170 g m)) .: Regular fit .: Runs true to size 1st Battalion, 81st Field Artillery Regiment 1st Battalion, 81st Field Artillery Regiment The 1st Missile Battalion, 81st Artillery was formed at Fort Sill in 1963 and deployed to McCully Barracks in Wackernheim, West Germany under the 56th Field Artillery Group. The battalion moved to Wiley Barracks, Neu Ulm in 1968 and was redesignated