Question: Which region is this tribal group from who fought against the United States Army alongside Palus, Schitsu'umsh (Coeur d'Alene), Spokan, and Yakama warriors at the Battle of Spokane Plains?
Sentence (from "Battle of Spokane Plains"): The Coeur d'Alene War was part of the Yakima War, which began in 1855.
Relevant evidence: No