The Lakotans have withdrawn from all treaties with the United States on the basis of the United States' law. You have the blessings of all fair-minded folks!
You will probably not see this in the mainstream press, which could at least pretend to be an objective media. Certainly this is newsworthy!
http://www.republicoflakotah.com/
GENERAL ASSEMBLY ADOPTS DECLARATION ON RIGHTS OF INDIGENOUS PEOPLES
http://www.un.org/News/Press/docs/2007/ga10612.doc.htm
Please consider contributing resources and volunteering to their reinvigorated Nation!
As Cuchulainn said in his "Advice To A Prince":
Do not let wrongful possession stand because it has lasted long; but let witnesses be searched to know who is the right owner of land. Let the tellers of history tell truth before you.
http://www.celtic-twilight.com/ireland/gregory/cuchulain/advice_to_prince.htm