Apsaroke war group. The warrior on the right holds the curved stick of one of the tribal military organizations. This stick was planted in the ground at the decisive moment of the fight; like a banner behind which its wearer pledged not to retreat. Photo taken from volume 4 of the encyclopedia published by Edward S. Curtis (1868-1952) on the Indians of North America; with a foreword by Theodore Roosevelt. Between 1907 and 1930; 20 volumes were published.