A treaty will not save the city erased in such and attack. A treaty does provide a way for bureaucrats and ambassadors to meddle with, discuss and possibly pre

A treaty will not save the city erased in such and attack. A treaty does provide a way for bureaucrats and ambassadors to meddle with, discuss and possibly prevent that attack in advance... if they know about it. Mounting a working nuke to a working rocket can easily be done in secret by a small team.