By that logic, if I were going to punish my puppy for pissing on the carpet even though it actually did no such thing, I should really beat the hell out of it so it doesn't grow up and attack me for it.
No, a far more reasonable approach would have been to make a just treaty that accurately represented history, and not to cripple a nation that was not responsible for the war and whose leader was the only to make an attempt to stop it.
Bookmarks