Once upon a time, there was an exemplary defensive alliance.
It showed after centuries of more versatile alliances that you could also design an alliance in order to maintain peace, not just in order to overpower your enemies in the next, inevitable, war.
We threw this alliance away in 1999 and turned it into a political-military adventure organiser. We've been reminded about this move these days, and one of my very few fears is that we all will regret this sometime.
It's so sad - and so short-sighted.