With the fall of the wall, and the collapse of the Warsaw Pact, the regiment on 15 October 1993 to 15 March 1994 began the deactivation process of the unit. The regiment, less the 3rd and 4th Squadrons, was reactivated in October 1994 at Fort Irwin California. Support Squadron Support Squadron, 11th ACR provides combat support/combat service support to the 11th ACR and NTC Opposing Force and conducts deployment, survivability and MOS sustainment training IOT ensure the success of the regiment, OPFOR, and squadron. "Packhorse", was activated in Germany under the command of LTC Ronald Kelly on 17 September 1985 to support the Blackhorse as it patrolled the East-West German border along the Fulda Gap. The squadron's official name at that time was Combat Support Squadron (CSS). The nickname "Packhorse" is derived from the early days of the U.S. Cavalry, when soldiers went on campaigns accompanied by packhorses, additional horses and/or mules that carried all their essential supplies. Everything from food to gunpowder to horseshoes were transported in this manner. Initial organization included five units—Headquarters and Headquarters Troop, Maintenance Troop, Supply and Transportation Troop, Medical Troop, and the attached 54th Chemical Detachment. The squadron also operated the Regimental Material Management Center which had the responsibility for the overall logistics state of the regiment. Elements of the squadron were based at both Fulda and Wildflecken. The squadron was large for a battalion-sized unit, as the Maintenance Troop alone had some 400 soldiers assigned. The Packhorse provided logistical support during both the frequent regimental maneuvers of the Cold War and at gunnery exercises at Grafenwoehr, where the squadron operated for weeks at a time while the cavalry troops and tank companies rotated through the firing ranges. Squadron vehicles during the Cold War included 3/4-ton M1009 CUCV's, 1&1/4-ton M1008 and M1010 pickup trucks that often carried special-purpose shelters mounting communications, medical, or maintenance equipment, HEMTT's, M88's, tanker trucks, and trucks carrying chemical decontamination equipment. A pair of M934 5-ton Expansible Vans ("Expando-vans") housed the squadron headquarters in the field. The squadron was also capable of highly specialized functions such as the provision of potable water by filtering fresh water sources through purification units. On 3 October 1990, the two Germanys re-unified. By December 1991 the Soviet Union dissolved, ending squadron's six-year presence along the Iron Curtain. In August 1990, Iraq invaded Kuwait, prompting the United States to respond. On 16 May 1991, the