his anti-jew policies were hihly criticised globally
Hitler failed to provide for a winter campaign in Russia and became obsessed with the idea that teh Germans must not retreat
Dividing his forces in the USSR into a three-pronged thrust which failed on all three prongs.
Declaring war unnecessarily on the US, thus further broadening the conflict while gaining nothing in return from his Japanese 'Allies.'
most serious of all was Hitler's decision to concentrate on producing V-rockets when he could have been developing jet aircraft: these might well have restored German air superiority and perevented teh bomb attacks on 1944 and 1945