The Mackenzie Raid

All through the Spring of 73 Mexican bandits and marauding Indians had ravaged the border. Now General Phil Sheridan had chosen the battle-wise Colonel Mackenzie for the "unauthorized" punitive raid into Mexico, if the U.S. Fourth Cavalry crossed the border, Mackenzie knew that he alone would carry full responsibility for the raid.... If he failed he and his entire command would be left to die at the hands of the Mexican outlaws.