More than 11 million innocent people were killed as hitler practiced genocide in europe. world war ll casualties were totalled. the war in the pacific began. mussolini and hitler signed the pact of steel.

I would say that the answer to the more than 11 million people were killed would be because Hitler practiced genocide especially of the Jewish people, in Europe. This was a crime against humanity and one which was met with the armed opposition by the Allies, including the Soviet Union.

The air will be way different