Eston's surrender rejuvenated many of the bored/unresponsive tendencies in both the Barony and Darkan armies. Just goes to show how much more motivated you get to fight a war when its on YOUR borders and not your friend's. Eston's urgency and desperation throughout the war always was on a different level than Darka and BoM and was one source of conflict between the allies because they simply weren't as worried about things as we were, because it was our regions and future on the line at any given moment, not theirs.
Now it is, and they are a lot more pumped up to fight the war.
That's not entirely true, will explain later.