Why wouldn't all the nobles rally in Sirion and Perdan and make the contient a two realm one and simply combat in the middle.. making the middle realms well savage lands of constant combat/battle slaughter?
I mean if it could be done I'm not saying i'm against it but it would be interesting to role-play if it could be accomplished... Start calling Dukes Princes and well begin the slaughter!
If Morale boost are given to everyone and possible the regions o the turmoil that could arise.
...Hypothetical of course.