“In this advance, the frontier is the outer edge of the wave — the meeting point between savagery and civilization.”

Sieber’s life as a scout was one of relentless danger. Over the course of his career, he participated in 127 engagements and was credited with killing more than 75 individuals....

Their exceptional skill as riders was unmatched. Children learned to ride at a young age, and both men and women developed equally notable abilities.