Subsequently, they made an accounting of industry and mines to ensure their safety and to establish civil administration of captured territories. When the expected rapid end of the war did not materialize and Germany had suffered great losses in manpower, equipment and weapons, the existing stocks began to be depleted quickly. The German leadership urgently started to develop a plan for the economic use of the occupied territories, during the war itself. Thus German leadership had to abandon the implementation of the plan Oldenburg, recognizing its unsuitability.