[hmm37]

In China at least the equivalence of WWI and WWII was basically the Warring States period (around 400-200BC), where tons of people die, therefore generally a strong dislike for war in Chinese culture. I always thought that WWII created a similar feeling in at least Europe.

There were other periods also of disunity in China, and consequently tons of people ended up dying as well. I'm sure it's similar with e.g. Japan where they had their own "three kingdoms" period.