The arbitrary border was further criticized by the Wehrmacht's office of military economy (Wi Rü Amt) because it cut through territories and states that comprised organic economic units whose parts were mutually dependent on each other.[1] It instead proposed a division that would follow existing international boundaries, along the eastern border of Iran, the northern border of Afghanistan, the western border of China up to Tannu Tuva, and then northwards along the Yenisei river to the Arctic Ocean. Despite assigning all of British India and Afghanistan to Japan, this would give Germany a better and more easily defensible frontier in Siberia, and also grant it control over the Kuznetsk industrial basin in addition to the rich iron ore deposits of the eastern Ural mountains.[1] The plan of the Third Reich for fortifying its own Lebensraum territory's eastern limits, beyond which the Co-Prosperity Sphere's northwestern frontier areas would exist in Northeast Asia, involved the creation of a "living wall" of Wehrbauer "soldier-peasant" communities defending it.