As Hitler was fully responsible with starting the war, this argument sounds like it would apply more towards Napoleon who not only was France's leader but who also commanded the troops in the field himself using nothing short of brilliant tactics. Hitler did NOT command his troops, he only told his generals what he wanted and his generals would come up with logistics of getting this done. Even this wasnt always the case.

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The war against Russia will be such that it cannot be conducted in a knightly fashion. This struggle is one of ideologies and racial differences and will have to be conducted with unprecedented, unmerciful and unrelenting harshness. -Adolf Hitler