They shouldn't have been offered terms, period, before they even got attacked.
This isn't the 1940s. You don't get to attack people and have the world go "oh, well... just don't do it again".
You open a war against someone, expect them and their friends to shove it down your throat. Don't like it? Stop declaring lame-$@! wars with lame-$@! reasons.
You find someone that can push back and you whine that they aren't giving you enough of a chance to get away with something you started.