The Siege of the Alamo as a prelude to the Battle of the Alamo begins in San Antonio, Texas.

The Siege of the Alamo and the Battle of the Alamo refer to related moments in the same conflict, but they describe different scopes and phases of what happened in 1836. The siege covers the entire period in which Mexican forces surrounded the Alamo mission in San Antonio, cutting off supplies and escape routes for the Texian and Tejano defenders inside. This phase lasted about thirteen days, from late February into early March, and it was defined more by waiting, psychological pressure, and preparation than by constant fighting.

The Battle of the Alamo, on the other hand, refers specifically to the final assault that ended the siege. This was the intense, decisive attack launched by Mexican troops in the early hours of March 6, 1836. Unlike the longer siege, the battle itself was relatively short—lasting only a couple of hours—but extremely violent. During this assault, Mexican forces overwhelmed the Alamo’s defenders, resulting in the deaths of nearly all those inside and securing a Mexican victory.

In short, the siege is the broader military situation, while the battle is the climactic event within it. The siege explains how and why the defenders became trapped and worn down over time, while the battle explains when and how the conflict was resolved. Understanding the distinction helps clarify that the Alamo did not fall after weeks of nonstop combat, but rather after a prolonged encirclement followed by a single, concentrated attack.