The Second World War is certainly the most tumultuous time in Japanese history but it was still an era of relative stability when compared to civil wars, revolutions, and invasions in most parts of the world E.g. the monarchy prevails
2) He's right. Japan post-WW2 endured foreign occupation yes, but without significant internal turmoil. Other states that underwent massive change (e.g. Russia: WW1->Civil War->2 Revolutions) had significant internal turmoil. This helps explain why so many "old" businesses survived in Japan.
