The Dog Soliers or Dog Men (Cheyenne Hotamétaneo'o) was one of six military societies of the Cheyenne Indians. Beginning in the late 1830s this society evolved into a separate, militaristic band which played a dominant role in Cheyenne resistance to American expansion in Kansas, Nebraska, Colorado and Wyoming, often in opposition to the policies of peace chiefs such as Black Kettle. Today the Dog Soldiers society is making a comeback in such areas as the Northern Cheyenne Indian Reservation in Montana and the Cheyenne-Arapaho Indian Reservation in Oklahoma.