What Was The
The Mormon Battalion was the only unit in American military history bearing a religious title and being comprised almost entirely of recruits from a single religion. If the 11,000+ members of the new Christian religion called The Church of Jesus Christ of Latter-day Saints had a quarrel, it was with the United States, not the Mexicans. They had just been expelled in mid-winter from the United States by mobs posing as state militia.
After being forced to abandon their homes in Nauvoo (then the largest city in Illinois) and cross the Mississippi River into the wilds of Iowa Territory, many expected the now impoverished Mormons to disburse. With this prospect, they felt that the Mormons could not spare their best frontiersmen. Yet these 500 men volunteered when their leader Brigham Young called and proved their loyalty. And the rest is history...