Never! In the name of pride and national honor, they will fight on forever!

Yes, absolutely. They've gone off to war singing about the girls they left behind them and the pleasures of their life back on the farm at harvest and featival. But they just aren't willing to let the Admiral randomly get away with conquering six countries all of which hate his guts and then, when random aliens show up, having them just say "nope, all crimes before we got here are pardoned, stop beating up that innocent conqueror, we don't care about innocence or guilt, just that you kids stop fighting right now." The people he conquered are languishing under his tyranny right now, and if he lets them go tomorrow the war will be over tomorrow.

(This, at least, is the opinion of the present Government. The present Government is organizing new elections, thanks to the growing unpopularity of the course to which it has committed itself from both left and right. But these elections have not resulted in a change of government yet.)

Hey, we're out of this! Leave us alone, you already deposed one government.

Amraterre is, in fact, working quite hard on joining Vanda Nosseo, at which point its enemies will need to give up and go home! The hard part is that there's a lot of areas where (they insist) there is no national government that can win a 51% vote, and they're trying to build up support (and, uh, understanding of what voting is) in those areas before they hold the official vote. That will at least limit the extent to which people can go around bombing other people's capitals (i.e. nobody can do it to them.)

Amraterre means that it is attempting to deliberately settle large numbers of colonists in Vzhoudouni provinces - and those of free minor princes - they recently seized by illegal acts of armed force. Vzhoudoun will no more allow a heretical usurping warmonger to escape justice than Wolcyn, not when the emperor's sister has been driven back to his palace because those warmongering heretics murdered her husband and chased her out of her home. Not unless it starts losing the war.

(It may, in fact, be worth saying, at this point, that the conflict has in fact almost wholly shifted away from the tiny principalities of the north that are organized enough to try joining Vanda Nosseo if worst came to worst, and into the twin fronts of the Vzhoudouni coast - where Montrege's new swarm of aces are raiding to try to prevent Vzhoudoun from getting its act together enough to organize an invasion of Amraterre - and the highlands of Vaucluse and Tremadia. Both are divided; Tremadia's civil war between father and son had turned into a Holy League - Coalition proxy war when that Great War began, and Vaucluse's monarch was overthrown and replaced with one of Amraterre's marshals (Judic Arbettoi, the "Tiger Cub") when they occupied the country, and the exiled "winter king" has been haunting the courts of the Coalition ever since, looking for someone to put him on his rightful throne. Neither pretender to either Vaucluse and Tremadia has any real hope of getting the support of fifty percent of the population, and so the only people petitioning Vanda Nosseo have been representatives of tiny oppressed minorities looking for protection and refugees who are happy to settle in Vanda Nosseo without trying to settle any new state - and so sword and gun, not ballot and pen, are deciding the affair.)

Does it help anything if Vanda Nossëo points out to Amraterre that there doesn't need to be a national government and they are willing to do this village by minuscule village armed with Elspeth lectures about the concept of voting.

... Vanda Nossëo appears to have this model of the world where countries are willing to give up territory? As, like... a thing that happens? Miniscule villages do not have the legal right to secede. This is recognized by the entire planet. Amraterre is a nation, an indivisible whole, not a collection of feudal principalities. It possesses a unified common language, an enlightened administration, great art, clear natural borders there and there, a national parliament (with advisory powers), and overall popular support. That there are villages that cannot get 51% of the population together to all vote on anything does not change this fact. 

Amraterre reallizes that land is... not... valuable... right? Like, land that people are sentimentally attached to is valuable, land that is near other land that has important stuff on it is valuable, but random villages full of farms and ramshackle cottages are essentially worthless. They can get a homestead planet with more and nicer land as a signing bonus if they want. And they can't keep the people after signing on. Basically all they're clinging to here is a point of pride that is honestly making them look kind of cringe to all the other VN states.

... Hey, entire rest of the world that we're fighting a war with. You agree with us here, right?

Oh yeah.

No question.

Observe our repeated futile invasions of Ljudizem!

Why do you think we didn't just all emigrate?

We rest our case.

Honestly a lot of VN folks are in fact still kind of confused about why everyone doesn't just emigrate and leave the remaining holdouts stuck with washing their own socks and growing their own oats, but they will forge on chalking it up to local custom.