[quote=Alfhedil]
Well, it's the note you made in your societal description which may have cause for conflict, as the "Forest of :C" is very hostile to non-natives due to the nature of the air within it and on its borders. Your nation seems to take over others through passing into their borders and culturally taking them over, a feat which wouldn't be possible with the "Forest of :C" So with that being said, and the nature of your nation's stance on the whole "Kill or enslave our people and we are no longer Bro.", it seems like your nation would be almost automatically hostile with mine for dint of being a climate that cannot support life originating beyond its borders.
[/quote]

To be fair, I plan on having my nation crumble during the next political quake that may hit it and either evolve in Hitlerland or Democratia depending on the influences that push it down.

Otherwise I was thinking of a large chunk of semi toxic swamp separating our lands, swamp taking over by markless renegades seeking to flee dictatorship, which would of course be violently murdered soon enough as the Administration goes in and says 'O HAI THAR GUYS!', but this is where our problems start now do they?

Crayvens like to change the world to their need, a lot. I'm expecting the nature of your lands being toxic comes perhaps from the vegetation producing ammonia compound out of air yes? Or at least being something of a nature that can be altered since anything else would give you divine protection against anything. While you may argue that your population is simply not hostile and as such you won't use this to stir up trouble while being invincible in your homeland, I will either call bullshit on this oooor ask you that if it is indeed the case: What are you doing here? Roleplays are meant to interact with others and although I agree that yes, war isn't all that there is in NRPs, I find that having a land where none may live and considering we're nearly 2000 years away from the gas mask, I am skeptical.

Assuming that this isn't invincible protection and something like I guess made from the plants, then plants can burn or be cut down and as the Crayvens believe in conquering nature itself and see themselves as pioneers, you can bet that swamp will eventually be dried up and that forest will begin to disappear and a lot of people will die... If nothing stops the Crayvens first.

Indeed, I made these guys to be the impending Roman doom which may be fatal to all if no action is taken. Fortunately for you as the erosion of your forest would probably be either a slow or excruciatingly painful (for the crayvens) process, you have time to act with the protection you have... until it is too late. Good thing, you seem to have a potential ally bordering you!

As for cultural assimilation I feel you may have gotten this wrong, it's more of 

*Crayvens get a bad harvest.* "IT'S THE STRANGER'S FAULT! It's because we didn't kill/enslave them all that God is unhappy with us!" *Proceed to rape churches and burn women.*

The Crayven realm is constantly overpopulated and suffers from draconian laws where any crime nets you a death penalty and where they are dominated by a caste of people that have power of life or death over anything they see. As such, Him (The God-Emperor if you will), aims at the outsiders as the source of their misery to direct the anger of the populace and why not, do some population control by forcing every house to send a man in a dangerous military campaign.