[johnarryn]

It makes sense to specify this. I assume that a NAP is for a set number of turns (helpful to set out the turn it will expire at the beginning) unless we agree to, say, a "3-turn warning NAP" where 3 turns of warning must be given before an attack, but the NAP will otherwise stand for the entire game.

You could, of course, do something like a 3 turn warning NAP that will last no less than 15 turns or something, but generally unless otherwise specified it seems reasonable to assume that a NAP is for a set amount of turns.