will have to continue the process of thinning out in other theatres in order to find forces to hold both the Allies in the West and the Russians in the East. At some stage this process of thinning out will face the Germans with the necessity of deciding whether or not to evacuate territory. In deciding what areas they can afford to evacuate the Germans must take account of the political, economic and strategic consequences of so doing. Possible evacuation of occupied territory 6. The Balkans. Economically Germany must retain the oilfields of Roumania and Hungary if she is to avoid a drastic reduction within a few months in the scale of her military effort.