i feel C&G/SF and friends have the moral high ground in this conflict no matter what they deem as acceptable to end it. as far as i know they have been offered IToS. until the huge war chests are gone and the threat is neutralized and the blocs show what happens when you attack them to future attackers as well as the current attackers then the war must go on until the defending side no longer feels the attackers are a threat.. aka indefinitely
top and friends lost all "rights" when they entered the war the way they did. had they been attacked im sure the war length and terms would be much less harsh and maybe over.
top/iron chose this path, and they must either win or be at the mercy of the winners they had attacked.
and before you call them the new NPO or demand "karma" just remember who attacked who and pay attention to the number of viceroys and govt change demands ect...