I find it kinda funny how casual the tribe is about Karina and Reshutoka's engagement, specially when they walked in on them in Chapter 2 I think?
Also, I understand that Reshutoka is strong, but I doubt they are strong enough to take on an entire empire? Even if they just go after the prince, that's basically a declaration of war.
I’d like to think that while Karina was inside the cabin sleeping after getting struck by that arrow in Ch.1, Reshutoka just went around the village like “GUYS YOU WONT BELIEVE WHAT I FOUND!!! A PRETTY HUMAN GIRL!! THAT’S MY BRIDE NOW” and they just accepted it because someone in her position must have a good sense of judgement to pick a bride so, “good for her, she picked up a random human to
chew marry”. The wolves could have even taken a peek inside the cabin and went “

She’s pretty fr”
Also, if not strong enough to take down the Empire, I believe making the region stronger by forming stronger alliances with the human tribes in the isolated Northern Lands could create a separatist movement that in a way could weaken them as they loose part of their territory. Now, how impactful that loss would be is another thing — one would assume lands that are just snowy and dangerous
and they basically use like Siberia don’t pose that much of an economic advantage for the Kingdom of
Russia Cloria. Could be more of a power thing. Maybe location wise keeping that territory is advantageous, could even have a frontier with other Kingdoms*.
*Such Kingdoms, if willing to weaken the strongest Empire, could form alliances with the Northern people lead by Karina and Reshutoka. I mean, you have BEASTS that have more knowledge on how to survive the conditions of the Northern lands than, say, the Cloria Army. They could easily ambush thousands of men and do a Mulan (1998) and reduce their army into just a few to be combated by ally armies + mercenaries from the North + anyone from the human settlements and wolf tribe willing to join.
Art of War typa shit. I’ve read it in my teens, I think there’s a whole ass chapter about using the land to your advantage.
And as to why it could be advantageous to the wolf tribe, I think that just by taking back the territory that is theirs and the fact that ages ago they were FORCED to isolate themselves would be a good enough excuse. With a lowkey prominent figure on their side (future Queen’s older sister) it could be even easier to get allies + we know that Karina formed good relations with other nobles so all it takes is telling the girlies that beastkin seggs is nice and they’ll join the army.