Region switching based on whomever happens to be winning at that moment in time ruins the war aspect of the war island, which is why we in Taselak adopted a policy of banning any lords who defect their regions to us for treachery and cowardice. I asked Ikalak to do something similar but I only got a rather snarky response from their king, which was interesting as Ikalak suffered rather heavily earlier in the war from a lot of lords switching the allegiance of their realms.
To be fair, being outnumbered by Taselak almost 2 to 1, Ikalak's only chance to win is absorbing what's left of the Sandies. It's easy to ban immigrants when you're the largest realm by far and are winning decisively.
The nobles of Ikalak's orders were to sit in the capital, and anyone who attacked the other realms was threatened with immediate banishment.
...This, on a War Island.
You play Cody, right? A brigand who was consecutively banished from both Taselak and Sandalak for not following orders, not playing in team and even spying.
Now you're doing the same in Ikalak and it's actually fine and dandy in-character, but why mislead people OOCly?
