Confederate general Joseph O. Shelby and his legendary Iron Brigade refused to acknowledge the end of the Civil War. Instead, they fought their way to Mexico in search of a place where they could continue to defy the U.S. government. These veteran Missouri cavalrymen clawed their way for fifteen hundred miles, fighting Juaristas, Indians, desperados, and disgruntled gringos. They disbanded only after they had offered their services to Emperor Maximilian and were turned down. Shelbyas adjutant, journalist John N. Edwards, first published his story of the exploits of this superb mounted brigade...