Native American Land...

So in my Property class we're talking about the "conquest" of the Native Americans and how Europeans basically took their property without any legitimate process other than the one they made up, and then the US justified it through its own courts... it just seems so odd to me. Being from Oklahoma, I've thought about this a lot, and I've always thought that the Europeans' (and later United States') treatment of Native Americans was grossly unfair, but it's really striking me how they justified it on their own terms. Basically, "it's ok because we said so." It just makes me sick to my stomach. But then, there's nothing that can be done now; it's just one of those things in history that will always bug me. And most other people. I guess we just have to be aware of it and try to avoid doing it again...