Empire of the Summer Moon: Quanah Parker and the Rise and Fall of the Comanches, the Most Powerful Indian Tribe in American History

by S.C. Gwynne

Chivington was their champion, and he believed God was on his side. “Damn any man who sympathizes with the Indians!” he said. “I have come to kill Indians, and I believe it is right and honorable to use any means under God’s heaven to kill Indians.”

Not sure that God saw it this way