Aren't there Deeds of Title and Title Insurance for this kind of thing? Isn't there Settled Law, UN boundaries, and then, below that is some various, armed conflict?
It seems to me, what is not clearly owned, or set aside by Treaty, is clearly being fought over, or at least contested somehow.
What defines ownership, anyway? You? Them? Someone from 10,000 years ago? A mark on a map? A miserable excuse? Some old feud? Really think about this. Is this not what seems to be going on, with the world just hoping? Just keep it low level?
If you want the land back, just take it. It was taken from your forefathers. But, the only reason you lost it was you could not hold on to it. If you can get it and hold it, now, go for it, by all means. And more power to you. Just not my State, just not my Country. Just not the world's ready oil resources. We will fight you for that.
This is the very way of the world, my friends. Think about it.
@Rob Roy knows what I mean.