Question: Which battle resulted as a conflict between the United States Army and the Sioux and involved a Hunkpapa Lakota holy man who was killed by Indian agency police on the Standing Rock Indian Reservation?
Sentence (from "Sitting Bull"): Sitting Bull (Lakota: Tȟatȟáŋka Íyotake ] in Standard Lakota Orthography, also nicknamed "Húŋkešni" ] or "Slow"; c. 1831 – December 15, 1890) was a Hunkpapa Lakota holy man who led his people during years of resistance to United States government policies.
Relevant evidence: Yes