 He is known for his participation in Red Cloud's War, as a negotiator for the Sioux Nation after the Wounded Knee Massacre, and for serving on delegations to Washington, D.C.The latter 19th-century Oglala Lakota leader known to the whites as Young Man Afraid of His Horses was born about 1836 into a distinguished family of Oglala headmen.According to his father, Young Man Afraid of His Horses was the fourth in a direct line of Oglala chiefs to bear the name, which is more correctly translated as "They-Fear-His-Horse".