Crazy Horse was a Lakota war leader of the Oglala band and one of the most renowned Native American figures of the nineteenth century. Known for his commitment to defending Lakota lands and lifeways, he emerged as a central figure in the northern Great Plains during a period of intense conflict with the United States. Crazy Horse resisted U.S. expansion into the Powder River Country, rejecting treaty settlements and reservation life, and became widely respected for both his tactical skill and his personal humility, which included a lifelong avoidance of being photographed.