German civilians in the 1930s and Cambodian citizens in the 1970s both had to deal with brutal dictators and vile, corrupt administrations. Both the Nazis and the Khmer Rouge established violent police regimes in their own nations. Anyone they judged "impure" was punished by both the Nazis and the Khmer Rouge. Millions of their own compatriots were ultimately murdered by the Nazis and the Khmer Rouge in concentration camps and executions.