On an April afternoon in 1836, the Battle of San Jacinto took place just east of what is today Houston, Texas. With that clash, a crucial phase of the westward expansion of the United States began. That single, swift, and surprising confrontation - amidst the cries of "Remember the Alamo! - set Texas free from Mexico. It also led to the shaping of much of the American West as we know it today. Here, in this short-form book, is the story of how Sam Houston and his rag-tag army crushed Santa Anna and his far superior force.