Final answer:
General Antonio Lopez de Santa Anna led the Mexican army during the attack on the Alamo, which ended in a Mexican victory and the execution of all male defenders.
Step-by-step explanation:
The Alamo was a pivotal event in the Texas Revolution, led by General Antonio Lopez de Santa Anna, the former President of Mexico, against Texan forces. Santa Anna and his four thousand troops besieged San Antonio and after ten days of intense combat, overcame the two hundred defenders of the Alamo. Despite Travis and his fighters' fierce resistance, the Mexican army's numerical superiority led to the mission's fall and the execution of all male defenders who survived the battle. The infamous siege reinforced the conviction among Texan forces that peaceable settlement with Mexico was impossible, setting the stage for further conflict in the region.