[dragonwriter]

> I'm not sure if it's helpful to think about things that way because it can be applied to just about everything.

It can be applied to just about anything (well, anything combat-related) because, in fact, nothing combat-related is purely defensive; it's all, including things whose direct use is protective, developed and acquired in order to improve the ability to destroy the enemy.

It's not helpful to delude oneself into believing that the purely defensive exists.