Red Cloud was not born to leadership. He earned it. In his early years he gained a reputation for fierceness as a warrior and as a tactician against both whites and other Indian tribes. And in his middle years, his leadership against the U.S. Army in the Powder River country, his forcing the closure of the Bozeman Trail, and his strong pressure to negotiate the favorable outcome of the Treaty of Fort Laramie in 1868 made him the preeminent chief among the Sioux.