The Navajo-Hopi dispute is one that has been ongoing for centuries, with the two parties unable to agree on a resolution. The Hopi tribe has an undefined interest in the 1934 Navajo reservation, which is a source of contention between the two Tribes. Congress has been unable to resolve the issue, and a court order has been obtained by the Hopi to put the tribe into possession of one-half of the Joint Use Area.