During the early stages of the planning for the invasion of the Soviet Union, Operation Barbarossa, the rear areas behind the front lines were envisioned to be subordinated to the respective armies, as they had during the invasion of Poland. By early April 1941, however, the military planners decided to limit the areas of army jurisdiction (Rear Army Area (Wehrmacht) [de]), with the bulk of the territory to be controlled by the Army Group Rear Areas.[1]