The ALAMO was a Texas mission that was the site of a famous battle during the Texas Revolution in 1836. It was defended by a group of Texan soldiers led by Colonel William B. Travis and Jim Bowie against the Mexican army led by General Antonio Lopez de Santa Anna.' The ALAMO was a Texas mission that served as the site of a famous battle during the Texas Revolution in 1836. It was defended by a group of Texan soldiers led by Colonel William B. Travis and Jim Bowie against the Mexican army led by General Antonio Lopez de Santa Anna. The battle resulted in a loss for the Texan forces, but it has since become a symbol of Texan pride and courage.