Name one of the prominent Native American nations that are headquartered in Oklahoma today.

The Cherokee Nation is a prominent Native American nation that is headquartered in Oklahoma today. This nation has its roots in the southeastern United States but was forcibly relocated to Oklahoma during the 1830s under the Indian Removal Act. The Cherokee Nation is one of the largest federally recognized tribes in the United States and has a significant cultural, economic, and political presence in Oklahoma. Its capital is located in Tahlequah, and it operates various services including health care, education, and economic development initiatives.

The other nations mentioned are significant but do not have their headquarters in Oklahoma. The Navajo Nation, for instance, is primarily located in the southwestern United States, covering portions of Arizona, Utah, and New Mexico. The Sicangu Lakota Nation is associated with the Lakota people and is primarily found in South Dakota. The Iroquois Confederacy, which is composed of several nations including the Mohawk and Seneca, is primarily based in the northeastern United States and Canada, not in Oklahoma. This context reinforces the prominence of the Cherokee Nation in Oklahoma’s contemporary landscape.