The Alamo fell in thirteen days, with all its defenders killed. One hundred miles away, Goliad surrendered after a single dayis battle, with the prisoners then executed by firing squad. Only twenty escaped by flinging themselves into the San Antonio River. Historians note that the Alamo was a fortress that should not have been defended and was, while Goliad was a fortress that could have been defended but was not. After the fall of Goliad and the Alamo, Sam Houston retreated to east Texas. His army grew, as the struggle was now for independence and survival. Houston caught Santa Anna at San...