Final answer:
The Alamo was a key military position during the Texas Revolution, where Texan defenders were besieged and eventually overwhelmed by Santa Anna's Mexican army in 1836. The defenders' sacrifice became a rallying point for further support to the Texan cause, leading to ultimate victory at the Battle of San Jacinto and the signing of the Treaties of Velasco.
Step-by-step explanation:
The Alamo became a battleground during the Texas Revolution because it was a strategic point for both the Texan and Mexican forces. President General Antonio Lopez de Santa Anna led an army into Texas to quell the rebellion and reached San Antonio in late February 1836, where Texan defenders, including notable figures such as Davy Crockett and Jim Bowie, had fortified themselves in the Alamo.
After a siege, the Mexican forces launched an assault leading to a battle that resulted in the death of nearly all Texan defenders. This pivotal moment in the revolution became an enduring symbol of Texan resistance and martyrdom, rallying support from both locals and Americans who flocked to aid the Texan cause, inflamed by tales of the vast acreage of land in Texas and a desire to avenge the fallen.
Following the fall of the Alamo, events such as the Runaway Scrape and the decisive victory at the Battle of San Jacinto under the leadership of Sam Houston ultimately concluded the revolution. The Treaties of Velasco were signed, forcing Santa Anna to acknowledge, albeit under duress, the independence of the Lone Star Republic, although the 'Texas problem' remained unresolved for Mexico.