Their warriors participated actively in the resistance throughout the conflict, and the Hayfield Fight near Fort C.F.

Smith was primarily a Northern Cheyenne operation.

Their specific experience of what happened to nations that didn’t resist American expansion — they had seen it at Sand Creek in 1864, where a Colorado militia had massacred a Cheyenne village that had thought itself at peace — gave their resistance an edge of desperate urgency.

The Arapaho, the third major nation in the allied coalition, had their own specific history with American pressure and their own specific interests in the Powder River Country.

Their warriors contributed to the resistance, though their geographic range was somewhat different from the Lakota and Cheyenne.