[wizardwes]

Well, yes and no. Theoretically, I could create my own sovereign nation on whatever land I want. But if nobody recognizes that sovereignty and applies their laws to that land instead of mine, am I really sovereignty? These reservations exist on land that otherwise is part of the USA. If the government decides not to recognize their sovereignty and say the treaties are void as a result, unless they can mount a resistance, they aren't really sovereign at that point.