Federal Indian policy establishes the relationship between the United States Government and the Indian Tribes within its borders. The Constitution gives the federal government primary responsibility for dealing with tribes. Wrone periodizes federal policy toward Indians in six phases: coexistence (1789-1828), removal and reservations (1829–86), assimilation (1887-1932), reorganization (1932–45), termination (1946–60), and self-determination (1961–85). He argues that the failure of the treaty system was because of the inability of an individualistic, democratic society to recognize group rights or the value of an organic, corporatist culture represented by the tribes.