World war 3 is almost impossible to but yes it's possible to win World war 3. There are only couple of ways to win this war, destroy the nukes and prevent the war from happening. Note: Nukes are very powerful so do not let them hit the ground.
Yes Hitler was planning world war 3 although he knew it wouldn't work out so he decided to have a world war 2 instead (who knows why he was planning a world war 3 instead of a world war 2.) So now you know he WAS planning world war 3!!!!!!!!!!!