One character tells another that Yaqui Indians and Apache Indians are the same tribe, the only difference being that Mexicans call them "Yaquis" and Americans call them "Apaches". That is not true. Yaquis and Apaches are two entirely different tribes and have little in common. The Apaches were fierce, brutal and warlike, regularly attacking American whites, Mexicans and other Indian tribes (including the Yaquis), often simultaneously, and regularly stole horses, rustled herds and kidnapped women and children from other tribes, Mexican villages and US settlements. The Yaquis were a much less aggressive and warlike tribe, existing mainly by subsistence farming and keeping to themselves in the mountains.