"History may be searched in vain for an equal march of infantry," said Lt. Col. Philip St. George Cooke in commending the Mormon Battalion for its epic march in 1846 from Council Bluffs, Iowa, to San Diego and Los Angeles to claim California for the United States. Yet this historic journey across the Southwest during the War with Mexico was but one of the reasons the Mormon Battalion holds a unique place in the story of America's western migration...