Saint Patrick and the Saint Patrick’s Battalion
The history of Saint Patrick and the Saint Patrick’s Battalion (Batallón de San Patricio). Formed and led by John Riley, the battalion was a unit of several hundred immigrants and expatriates of European descent who fought as part of the Mexican Army against the United States in the Mexican–American War of 1846–48. Most of the battalion’s members had deserted or defected from the United States Army.
