Hitler was a stupid and insane leader. on some aspects he was a good leader but if he did a few things differently we would all be speaking German right now. few knew that Hitler wanted to be allies with the UK. because of this he did not put enough resources into destroying the UK before he invaded Russia. one of the biggest mistakes Hitler made was at Dunkirk where Hitler ordered his men not to destroy the city and to wait. because of this 338,226 soldiers (198,229 British and 139,997 French)escaped German hands because they had 9 days to get out before Hitler ordered the attack. that probably would have ended the war for the UK and France. the second big mistake was when Hitler invaded Russia he ordered his troops "No Prisoners" there have been many occasions where the Russian veterans said that if the Germans took prisoners that the war would have ended very quickly because they would have turned on Stalin and joined the Germans. this would have ended the war in favor of the Germans.