Why did the mammoth arm itself with weapons such as ultimately to bring about its own destruction? Because it was apprehensive. Why was it apprehensive? Because it had enemies. Enemies, indeed! In its desire to defend itself against external enemies the poor creature forgot the very fact that its tusks were its own mortal enemy!
Why did Japan arm itself to the teeth? Because she was apprehensive. Why was she apprehensive? Because she had enemies. Why were there enemies? Because her aggressive policy excited suspicion in others. Rather than abandon that objectionable policy she augmented her armaments. But armaments are a relative affair. There is no end to an armament race."
- from Journey to the Missouri (1950) by Toshikazu Kase