An A-10 forward operating location was established at Sembach Air Base West Germany on 1 September 1978 when Det. 1, 81st Tactical Fighter Wing was activated. Revetments and a dozen hardened aircraft shelters were built and A-10A Single-seat forward air control versions began operations at Sembach during May 1979. Additional detachments were subsequently established at Leipheim, Alhorn and Norvenich Air Bases and at two rear-ward Forward Operating Locations which remain classified to this day, in West Germany. A-10's and support resources routinely rotated to these Forward Operating Locations from RAF Bentwaters for training and Tactical Evaluations. In the event of war in the 1980s, the Bentwater A-10's were to fight from Germany, and Bentwaters would host F-16's from Nellis Air Force Base and from Myrtle Beach Air Force Base, South Carolina.