Wasted too many good campaigns battling this and eventually the solution I found is,
1- Either don't have too many fiefs or don't put too many people in garrisons. I realized this cycle of endless wars start after each time I own a second fief and I have it's garrison fully packed as well as the first one. On my recent one I own only one town (I always give away when they grant me a second) and even if it's garrison is full, our total strength barely triggers a second kingdom to declare war on us. If they do, my ally lords are more willing to make peace than my earlier campaigns. I'll keep playing like this until I decide to rebel, then change my policy for preparation, etc.
2- Watch for little opportunities such as another kingdom declare war on your enemy or one of your ally armies lose a battle. First occasion results with the liege of your enemy to open up his purse, though it's a very short period of time as they immediately make peace. You should pay attention to the game log. Second is a very short period too since it curbs your kingdom's strength until new idle lords pop up and start recruiting. If you propose peace when this happens, you'll see at least some of your allies want peace and if you have some influence to spare, you can turn the voting in your favor.
Not that there's a lot to do during peace time though but the endless wars really become tiring.
The intrest in peace is 0% unless there is 2 or more kingdomes at war with us.
They can want peace if I dont "interfere" in the war - and they start loosing too much ground.
Imo this shoudlnt be needed atleast when we've lost more than the original starting lands.
About if the armies loose a battle, still dont want peace 0%.
We lost 2-3 armies of 500-900 men, and they havent lost 1 army per se, but they have lost about the same amount of troops, but they didnt loose the battles as they where on the defensive and thus had 2-3 armies meet the 1 of ours.
The issue for me is that there just isnt any desire for peace even if we loose the conqured lands, one would think that the lords that owned the fiefs being targeted or in their path would have wanted peace, so 2-3 of them, but none.
The only time the faction wants peace is if there is 2 vs 1 and not even then all the time.
I'm kind of curious if its related to the AI in the faction as I've rarely ever played other factions than Sturgia, is it just that they are too warmongering?
That if it was other factions they would be less warmongering?
I've played Battania and Northern Empire abit, and they werent all that much different though, Northern Empire maybe at that time got roflstomped by Khuzait when they where really op.
Battania we just kept on winning, and the other factions did want peace more often as they got attacked by other factions more.
Tbh as Battania at that time I didnt really need to be on the frontlines as much either, they just owned on their own.
Before that "point" of power so to speak, there was peace, and even long times of peace in this play, several weeks even.
But once we got that point it just never stops.
I wish there was an even more detailed explanation on what it takes to motivate the kingdomes for war than what is given still, so that we could for instance counter it more effective.
From what I understand your saying is that you think that its cause my "town is too powerful"? shouldnt that make them not want it.
I mostly just keep 1 town, and never a keep, always give those away, and I only have 1 town typically through the whole game.
Sometimes I take 2-3 if they are close by in a "secure location" typically.
Like if I rebel no one ever declares war on me, and the faction that I left is more than eager to go for peace, typically its very low like 1k I need to pay them tribute(which is peanuts when the town generate several thousands of denars).
I would rather have thougth that its there is too many fiefs etc with too little defense so they are "easy" targets teh ai think - thus wanting war and thinking they can pull it of.
Just dont feel "fun" when it drags on and on where the factions start at 4k vs 4k, and they grind on eachother until its 2k vs 2k - and there is 0% intrest in peace.
Then out of nowehere the enemy on the opposite part of the map declares war, intrest in peace is 100%
I think it would have been better if they wanted peace sooner, when the "power" lvl is down too much in terms of active armies on the map (again to the original post all the power is the fiefs or most of it).
Peace happends, and lords is out boom 3-4k strength again in no time, but before they can mobilize 2 holdings is gone and the 3rd on the way.
Kind of like alot of the mechanics in play in Europe atleast in terms of war was causis belli + you didnt want to wage "too much war" as it also left you open for attack.
Anyways I'm hopeing they up the desire for peace abit, as I think its "just to low atm" but again if they dont fine, I'll just use mods post release.