Question: Who did the warchief Red Cloud defeat in the Powder River War?

Related documents: [0]  [DOC] Henry Beebee Carrington (March 2, 1824 – October 26, 1912) was a lawyer, professor, prolific author, and an officer in the United States Army during the American Civil War and in the Old West during Red Cloud's War. A noted engineer, he constructed a series of forts to protect the Bozeman Trail, but suffered a major defeat at the hands of the warchief Red Cloud. [END] 
[1]  [DOC] Red Cloud's War (also referred to as the Bozeman War or the Powder River War) was an armed conflict between the Lakota, Northern Cheyenne, and Northern Arapaho on one side and the United States in Wyoming and Montana territories from 1866 to 1868. The war was fought over control of the western Powder River Country in present north-central Wyoming. This grassland, rich in buffalo, was traditionally Crow Indian land, but the Lakota had recently taken control. The Crow tribe held the treaty right to the disputed area, according to the major agreement reached at Fort Laramie in 1851. All involved in "Red Cloud's War" were parties in that treaty. [END]  
Answer: Henry Beebee Carrington
Henry Beebee Carrington