Sam Houston's outnumbered army destroyed Santa Anna's entire force in 18 minutes — while the enemy slept at siesta — ending a war and creating a nation.
On April 21, 1836, General Sam Houston led roughly 910 Texans against 1,360 Mexican soldiers under Santa Anna near present-day La Porte, Texas. The battle lasted approximately 18 minutes and decided the entire Texas Revolution.
Houston attacked during the afternoon siesta hour when Mexican forces were least alert. Texans advanced silently to within rifle range before unleashing a surprise assault, shouting 'Remember the Alamo! Remember Goliad!' as their battle cry.
The carnage was lopsided: 650 Mexicans killed, 208 wounded, and 300 captured. Texan casualties: 11 killed or mortally wounded and 30 wounded — including Houston himself, who had his ankle shattered by a musket ball but continued leading the charge on horseback.
Santa Anna fled the battlefield disguised as a common soldier but was recognized and captured the following day by Texian soldiers who identified him by the deference his own captured troops showed him.
Houston spared Santa Anna's life in exchange for a promise to order all Mexican troops out of Texas. Critics wanted Santa Anna executed, but Houston understood a live Santa Anna was more valuable as a political tool than a dead martyr.
The battle took place on a peninsula formed by Buffalo Bayou and the San Jacinto River, cutting off Santa Anna's retreat — a geography Houston had deliberately exploited, ensuring there was nowhere for the Mexicans to run.