 Young Man Afraid of His Horses emerged as a leading Oglala warrior during these raids.The U.S. Army's construction of forts along the Bozeman Trail beginning in 1866 to protect settlers infuriated the Lakota and Cheyenne, as they refused to accept the white presence in their prime hunting grounds.The U.S. officials invited the Lakota and Cheyenne leaders to a council at Fort Laramie to obtain right-of-way from the Lakota for the forts and road, but during the conference, a regiment of infantry troops arrived to build Fort Phil Kearny without the Lakota giving their consent.