Stalin is one of the most extraordinary figures in world history. He began as a small clerk, and he has never stopped being a clerk. Stalin owes nothing to rhetoric. He governs from his office, thanks to a bureaucracy that obeys his every nod and gesture. It's striking that Russian propaganda, in the criticisms it makes of us, always holds itself within certain limits. Stalin, that cunning Caucasian, is apparently quite ready to abandon European Russia, if he thinks that a failure to solve her problems would cause him to lose everything. Let nobody think Stalin might reconquer Europe from the Urals! It is as if I were installed in Slovakia, and could set out from there to reconquer the Reich. This is the catastrophe that will cause the loss of the Soviet Empire.
— Adolf HitlerDisputedHitler's Table Talk (1941-1944) (1953)