Editing Cheyenne (section)

===Treaty of 1825===
In the summer of 1825, the tribe was visited on the Upper Missouri River by a US treaty commission consisting of [[Henry Atkinson (soldier)|General Henry Atkinson]] and [[Indian agent]] [[Benjamin O'Fallon]], accompanied by a military escort of 476 men. General Atkinson and his fellow commissioner left [[Fort Atkinson (Nebraska)|Fort Atkinson]] on May 16, 1825. Ascending the Missouri, they negotiated [[Treaty#United States|treaties]] of friendship and trade with tribes of the upper Missouri, including the [[Arikara]], the Cheyenne, the Crow, the [[Mandan]], the [[Ponca]], and several bands of the Lakota and Dakota. At that time, the US had competition on the upper Missouri from British traders, who came south from Canada.

The treaties acknowledged that the tribes lived within the United States, vowed perpetual friendship between the US and the tribes, and, recognizing the right of the United States to regulate trade, the tribes promised to deal only with licensed traders. The tribes agreed to forswear private retaliation for injuries, and to return stolen horses or other goods or compensate the owner. The commission's efforts to contact the Blackfoot and the [[Assiniboine people|Assiniboine]] were unsuccessful. During their return to Fort Atkinson at the Council Bluff in Nebraska, the commission had successful negotiations with the [[Otoe tribe|Otoe]], the Pawnee and the [[Omaha (tribe)|Omaha]].<ref>[https://books.google.com/books?id=OHxu5MRcDNcC&dq=treaty+cheyenne+%22Henry+Atkinson%22&pg=PA143 Page 143], Francis Paul Prucha, ''American Indian treaties: the history of a political anomaly'', University of California Press (March 15, 1997), trade paperback, 562 pages {{ISBN|0-520-20895-1}} {{ISBN|978-0-520-20895-7}}</ref>