Id talk to him and try to convince him to defend Germany against Poland liberate the Danzig and stop there, take care of his country because if he goes further he will eventually go crazy and lose the war against the bankers, just focus on Germany development, and keep it great! If he doesent agree, well, i shoot him!
Changing history does not mean a better world. Only a different one to the one you know now.
When I look to the world now. I see Hitler leading the United States.
How do we prevent the same thing in the future?