Red Cloud 'Makpiya-luta'. As a non-hereditary chief, Red Cloud became the most successful war leader of the Cheyenne and Sioux during the 1860's and the Indians' campaign to close the Bozeman Trail and keep the Powder River inviolate. The Sioux were victorious and with the signing of the Fort Laramic treaty in 1868 the army abandoned her forts within the Dakota's hunting grounds. Thus Red Cloud became one of the few Indians ever to win an armed conflict against the U.S. Army. (Harbaugh, P., 1982)