The League has always been extremely resistant to internal upset.... even have a further secession or two as the lords scramble to preserve their little fiefdoms.
True, all we tried to do is get Tara to turn on the league (even in small form as well), but any proposal of even temporarily breaking the federation were shot down...
But yes, they've realized it's the league in its current form which has made Atamara boring. The question becomes, can they all agree on the solution and aren't they already too late.
I can think of several reasons why to NOT just finish wiping out Suville.
1) This war was not one of territorial expansion. It's a matter of principle and honor. Riverholm is literally the only thing they wanted. By claiming Riverholm for their own, Strombran practically guaranteed that Caergoth will attack.
2) Both Caergoth and Suville have been treated like !@#$ by Tara and Strombran. They've been used and abused throughout this entire war. The message non-League realms are getting: If you're not one of the Big Three, you're !@#$. (Although I personally have my suspicions that the League is really CE/Tara, and Strombran is politely accorded the status of red headed stepchild: tolerated and allowed to use the smallest bedroom, but not *really* one of the family.)
3) Assume that Caergoth goes ahead and wipes out Suville, and takes all their land. Or maybe splits it with the Grand Duchy. What then? Now they're completely surrounded by League nations. And Strombran has already made it crystal clear that war against any single League realm means all out war with *all* League realms. (Tara has almost certainly said the same to Caergoth.) Once Suville is gone they're choice would be to sit in their corner and die of boredom, or attack the League and get gangbanged. Do you want to attack the League *before* you've wiped out everyone that could help you, or *after*?
4) Assuming that Caergoth wipes out Suville, some nobles of Suville will doubtless abandon the region rather than change allegiance to Caergoth or Wayburg. This reduces the total pool of nobles in the region even further, making future actions more difficult when the inevitable decision is made to go after a League realm. (Inevitable because, you know, they'll be all that's left...)
5) War with Suville is, essentially, zero risk. Boring. I know that's the way the League likes things, but it's that kind of "easy, low risk" attitude that got us where we are now.
Which is exactly why Caergoth chose a different path. There were some nobles with 'serious doubts' in Caergoth on whether or not this was smart, but none too great to even remotely protest the proposal of the King.
There is one difference however, Tara/Caergoth's relation was much better than Strombran/Suville so it seems. Tara even now has already proclaimed they support Caergoth's claim on Riverholm and will not interfere. Strombran seems to have been bluffing against you, but your chars will find this out soon enough as the Suvillian King already knows what's going on IC.
Ps. the reasons for war you gave where the IC reasons obviously. Ooc played as much, if not more, a role in the declaration as no war was boring as hell and as the rulers of Caergoth we decided within a day together that we had to do something and this war would be perfect, or at least better than the alternative.
