It is doubtful whether genocide such as this is based on rational calculations. For instance, the diversion of resources into the ‘Final Solution’ was a major reason why Hitler lost the war. In the same way, war criminals are unlikely to be deterred by legal threats such as these; they are driven by a fanatical hatred, not common sense. Furthermore, in wartime situations the immediate threats are so pressing that the hypothetical, long-term prospect of justice won’t affect the actions of lower-ranking officers.