The 1960s and 1970s were a time of radical change in U.S. history. During these turbulent decades, Native Americans played a prominent role in the civil rights movement, fighting to achieve self-determination and tribal sovereignty. Yet they did not always agree on how to realize their goals. In 1971, a group of tribal leaders formed the National Tribal Chairmen's Association (NTCA) to advocate on behalf of reservation-based tribes and to counter...