The San Jacinto Battlefield is a historic site located in Texas, where the decisive battle of the Texas Revolution took place on April 21, 1836. This battle was fought between the Texian army, led by Sam Houston, and the Mexican army, commanded by Antonio López de Santa Anna. The Texians achieved a surprise victory, which ultimately led to Texas gaining independence from Mexico. Today, the battlefield is preserved as part of the San Jacinto Battleground State Historic Site. Visitors can explore the area, which includes a monument, museum, and various trails. The site serves as a reminder of the struggle for independence and the importance of the battle in shaping Texas history.