Comment by hardbass

If it were something completely alien like remote tribes then the property rights concepts would need some bridging, but the Levant has had traditional governments for centuries, so in that case I think the fact that it went through a period of instability does not negate that people, including in living memory had legal documentation and ownership deeds to a valid government. In my view, claims should thus pass to the last legitimate government if the time period has been so short. Again I should make it clear I am speaking independent of the fact of who has more firepower right now, ie the legally just solution would be repelling the invaders.