The problem is, the enemies in this case refuse to accept anything less than the surrender of the Empire. Despite the fact that they've lost 2 1/2 allies and made barely any long-term territorial gains in this war. (They took territory away from Zonasa, but almost every single region they took is now either rogue or iced.)
Cathay and
SoliferumKindara really need to step up their diplomacy game. And stop being a bunch of idiots.