It's not a problem of just going through "the mountains". It's a problem that the one-region-wide route allowed by the treaty leads straight into a fortification. Aside from the border with Carelia, CE now only has one border region, and it's fortified.
I'm confused. Is the north scared of actually fighting CE while their entire military force is having to focus on defending three realms in the south already? How defended can that region possibly be? Unless there is more than 10-15k cs always defending the region I see little reason for Darka/BoM/Eston//Hammarsett to be worried at all. Isn't the point just to get through to start fighting CE? If you think that CE will be able to prevent you from ever getting through that one region, then I must say CE is a lot stronger than I ever imagined and deserves to win this war.
