The Lakota tribe have withdrawn from all treaties with the United States and have begun movements to fully secede.
We are no longer citizens of the United States of America and all those who live in the five-state area that encompasses our country are free to join us," long-time Indian rights activist Russell Means told a handful of reporters and a delegation from the Bolivian embassy, gathered in a church in a run-down neighborhood of Washington for a news conference.A delegation of Lakota leaders delivered a message to the State Department on Monday, announcing they were unilaterally withdrawing from treaties they signed with the federal government of the United States, some of them more than 150 years old.They also visited the Bolivian, Chilean, South African and Venezuelan embassies, and will continue on their diplomatic mission and take it overseas in the coming weeks and months, they told the news conference.
This is a map of the US, with how much the Lakota were promised in yellow, and how much they actually have in red.
Background information can be found here. I got most of this from greenanarchy over here.
All I say is that this warrants very, very close watching.