About WW2 - yes, Hitler DID want war. And all the appeasement of the other nations only made things worse.
This applied to many, many conquerors throughout history.
I'm actually of the school that had Britain gone to war straight away, it would have been crushed. Appeasement, loathsome as it may appear on the surface, bought time to repair their military enough to face able to fight Hitler.
I also agree with your interpretation of WW1--but this is offtopic and we should do it via PM if we're to continue.