Sorry, but Albert was full of it.
Assuming he actually said it without further context.
If WWII wasn't a major lesson in the failure of pacifism and disarmament in the face of a determined conqueror, I don't know what else would be. You are welcome to imagine the end of the 1940s had none of the Allies been even marginally prepared for war. Even so, we had a lot of catching up to do.
