approximately 20,000 men expected to fill the ranks. During this phase, the emphasis from the point of view of control by the main headquarters was shifted from the squadron to the regiment, since each of the latter directed three of the former. The second phase, between 1 April and 1 June, was a period of intensive training in the duties of both individuals and units. The final phase was planned as on-the-job training during June. The last phase, however, was not completed because of delay in receiving reinforcements. The Constabulary became operational on 1 July 1946 as scheduled, despite the fact that its training program had not been completed. Changes in the redeployment rules caused the loss within a few weeks of 8,000 troopers, 25 percent of the total strength. During the first two months of operations 14,000 men, or 42.7 percent of the total strength, were lost through redeployment. The replacement and training task at that time were staggering. To make matters worse, there was a critical shortage in the Constabulary of junior officers during the late summer of 1946. This delayed the Constabulary in attaining the desired standards in discipline and operations, and was the cause of many changes in operational techniques. Despite all of these difficulties, the Constabulary attained its goal of selecting high caliber personnel. The main reason for seeking troopers of high caliber and for giving them higher ratings than are available in other military organizations was the realization that the Constabulary was only as good as the individual trooper. Small groups of two or three troopers operated far from their headquarters and were empowered with unusual authority in matters of arrest, search, and seizure. In conducting their daily duties, they faced many temptations, such as those offered by persons willing to pay almost any price for immunity after crossing the border, or for illegal concessions in the black market. Maintaining high standards in the Constabulary was all the more difficult because most of the combat veterans had gone home and had been replaced by men in the age group of 18 to 22 years. Mission The mission of the United States Constabulary was to maintain general military and civil security, to assist in the accomplishment of the objectives of the United States government in Germany, and to control the borders of the United States Zone. The Constabulary set up a system of patrols throughout