 After several small battles in Idaho, more than 800 Nez Perce, mostly non-warriors, took 2000 head of various livestock including horses and fled into Montana, then traveled southeast, dipping into Yellowstone National Park.A small number of Nez Perce fighters, probably fewer than 200, successfully held off larger forces of the U.S. Army in several skirmishes, including the two-day Battle of the Big Hole in southwestern Montana.They then moved northeast and attempted to seek refuge with the Crow Nation; rebuffed, they headed for safety in Canada.