to Army officers—the division was an expression of the concept—but it had not been applied to the continental United States before. With the creation of GHQ in 1940, the command of an Army post had become separated from that of the combat units stationed there, who became tenants of a Class II installation. At a Class II installation, there was a post commander who was responsible to the commanding general of the service command in which it was located. His job was to provide services to the AGF units stationed there. The principle was that the customer was always right, so the post commander complied with requests from the AGF units there. The increasingly stringent manpower situation from 1943 on meant that sometimes the post commander had to ask the AGF units for assistance. The technical services generally regarded their work as so specialized that it could only be carried out by dedicated field installations over which they had complete control. From the beginning, many procurement and storage installations were exempted from their control, becoming Class IV installations, and Gross successfully argued the case for the staging areas and ports of embarkation to also be exempt. On the other hand, there were many installations that had formerly been centrally controlled that now became Class I installations. These included the named general hospitals. To the ASF staff these were more Army posts with buildings to be maintained, staff and patients to be fed, and utilities to be provided. Sometimes there were even German and Italian prisoners of war to be guarded. The Surgeon General argued that these administrative tasks were incidental to the function of hospitals. The Army Specialized Training Program and training for the Women's Army Corps were directly controlled by the service commands. Several training installations of the administrative and technical services were designated as Class IV installations. These included the School of Military Government under the Provost Marshal General, the Edgewood Arsenal under the Chief of the Chemical Warfare Service, Camp Lee under The Quartermaster General, the Aberdeen Proving Ground under the Chief of Ordnance, Fort Monmouth and Camp Murphy under the Chief Signal Officer, and Carlisle Barracks under the Surgeon General. However others were classified as Class I installations. These included the Signal Corps training center at Camp Crowder, the Engineer training centers at Fort Leonard Wood and Fort Belvoir, the Quartermaster training center at Fort Warren,