Native American recognition in the United States
Native American recognition in the United States, for tribes, usually means being recognized by the United States federal government as a community of Indigenous people that has been in continual existence since prior to European contact, and which has a sovereign, government-to-government relationship with the Federal government of the United States. In the United States, the Native American tribe is a fundamental unit of sovereign tribal government.
Source: Wikipedia — Native American recognition in the United States (CC BY-SA 4.0)