Our lands.   

Really?  Truth is that since the beginning of time, human beings have migrated around the planet.  The "we were here first" argument doesn’t cut it..  At one point there was nobody living in what we now know as North America. Did arriving first give those arriving and their descendants title?  Not likely.    What about those who came later?  Human migration continues.  Good luck to you if you think you can stop it, or sit on a piece of land, claim ownership and act like a troll, when the greater good of our fellow countrymen is at stake.