Hawste Wakiyan Wicasa believes the Native American standoff with Dakota Access is the last Great Indian War. "This is the first time the seven bands of the Sioux have come together since Little Bighorn," he said. "Now, we have no weapons, only prayers." Mr Wicasa says he prays every morning and every night in the sweat lodge pictured behind him. "We are here for what our ancestors fought and died for. We have endured 250 years of betrayal by the white man."