Navajo Nation

Short definition from Wiktionary

Proper noun

1. 1
   A nation in the United States, a tribal sovereign domestic dependent nation established in 1868 by the Treaty of Bosque Redondo, nominally located in the states of Arizona and New Mexico. Capital: Window Rock: The people of this nation, or their government.
2. 2
   A nation in the United States, a tribal sovereign domestic dependent nation established in 1868 by the Treaty of Bosque Redondo, nominally located in the states of Arizona and New Mexico. Capital: Window Rock: The territory of this nation.