Both Hitler’s concentration camps and the Soviet Gulag existed for the same purpose—to purge society of its enemies, and to extract as much work from them as possible before they died. The only real differences are ones of scale—Stalin’s Gulag was far larger than anything Hitler ever conceived—and of efficiency. Stalin certainly shared Hitler’s genocidal tendencies, condemning entire ethnic groups, such as the Chechens, Crimean Tatars and Volga Germans, to mass deportation, death marches and forced labor. But where the Germans used Zyklon-B poison gas, Stalin preferred to let cold, hunger and
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