Juche, you are missing the point. It would've been an entirely different situation had the allies been proactive in confronting Hitler when he was breaking all the treaty provisions. He didn't have the military capabilities that he had by the time '39 rolled around. They could've just marched in from France. Put Hitler in his place. And, roll out. Pretty much, they just should have listened to Churchill.

Instead, they took the Obama route and believed they could dialogue with Hitler. They made concessions that made them look weaker each time the capitulated to one of Hitler's demands. And, with each capitulation, Hitler got bolder and his war machine got larger & better equipped.

It wasn't that they couldn't. It was a simply that they were afraid to. Sure, they didn't want another WWI. But, because of their inaction, they got something worse. Hell, even if they had marched on Germany in September of '39 then they probably could have taken Hitler then since most of his forces were focused on Poland. Instead, they waited for over a year for Hitler to attack them in the so-called Phony War.

I'm not for just taking the proactive solution everytime. But, when it comes to down to the likes of people like Il getting The Bomb, there is no time for talking. There cannot be concessions made. There can only be the elimination of the threat.