however, by drawing on their forces in Roumania and Hungary, build up within a few weeks, sufficient strength for an attack across the Turkish frontier from Bulgaria, but such a concentration of force could not be concealed from the Allied Control Commissions in Roumania and Bulgaria. On the other hand a Russian build-up from the present estimated strength of twelve divisions in South Caucasia, in preparation for an attack across Turkey's Eastern Anatolian frontier, might not become known to us for some considerable time.