promptly. For this reason the CSH bed capacity is not as heavily used as in past conflicts. The CSH will generally have a ground ambulance company attached. This company consists of approximately four platoons of ground ambulances commanded by a Medical Service Corps officer. The ground ambulance company in cooperation with available air ambulances (MEDEVAC) is responsible for the movement of sick and wounded from the battalion aid station and other forward-deployed locations to the CSH, as well as evacuation through an established medical treatment chain leading ultimately, for those seriously sick or wounded, to hospitals in the Continental United States in cooperation with resources in the U.S. Air Force. The CSH is larger than its predecessor, the mobile army surgical hospital. It is commanded by a colonel, rather than a lieutenant colonel. A fully manned CSH has over 600 people when fully staffed 248 beds. The modular nature of the organization allows for partial deployments, and the full unit is not often deployed (ATP 4.02-5 Casualty Care, May 2013). History and past configurations In 1973 and 1974, the 28th Surgical Hospital (Mobile) (Army) (MASH) helped phase-in new designs for operating rooms and patient facilities from the previous canvas tents. Since then all other configurations of army deployable hospitals have been inactivated or reconfigured to the CSH configuration. The last to convert was the 212th Mobile Army Surgical Hospital. In the mid 1970s the "MUST" designation was applied, (medical unit, self contained, transportable). During the Cold War, with conflict possible against the Soviet Union and Warsaw Pact, active duty MUST units were staffed by all the basic personnel necessary (medics, X-ray techs, pharmacists, cooks, clerks etc.) Doctors, nurses and specialists would be mobilized and mate up with the unit in the field. The unit would be flown to West Germany, withdraw pre-positioned complete hospital MUST equipment and military vehicles from warehouses and then deploy. It contained all necessary functions to provide care for 200 beds, including two intensive care units, eight medical wards, an emergency room, four operating rooms, an orthopedic room, a laboratory, an X-ray, a pharmacy and the unit's transport vehicles. It consisted of hard containers, which would be transported to the designated site, then the wheels would be removed and then expanded. They housed the operating rooms, laboratory, X-ray, and pharmacy. Inflatable shelters were used to provide double wall insulated areas for the patient care areas of