Until this time, the system ended the isolation of the Southwest from the rest of the country and brought larger numbers of Anglo Americans to the region (Acuna, 1991). .
Over time there was a press for lifting the restrictions on Anglo American immigration and for the separate statehood, this occurred around the 1832. It was concluded that Anglo Americans in Texas saw separation from Mexico and eventual union with the United States as the most profitable political arrangement because the colonists had developed what appeared to be a strong economic trade arrangement with the United States. By 1825, 5,000 Mexicans resided in the Texas territory, and the Anglo Americans population had risen to 30,000. A full'scale rebellion escalated, and the Anglo Americans in Texas, with some Mexican supporters, declared war on Mexico. To diminish the rebellion, General Santa Anna led an army from the interior of Mexico. Then 187 Texans took refuge in a former mission, the Alamo. Although this was a lost battle for the Texans, much myth grows around the struggle and this continues to date. The forever cry "Remember the Alamo" prompted aid from the United States to assist the Texans, most of whom were United States citizens (Acura 1991). In the later part of 1836, Santa Anna was defeated at the Battle of San Jacinto. This defeat ended the era of the Texas revolution, or Texas's war for independence, and Texas became a United States territory. The Texas victory paved the way for the Mexican?American War. .
This war (1846?1848) terminated with the Treaty of Guadalupe Hidalgo, in which Mexico accepted the Rio Grande River as the Texas border and ceded territory in the Southwest to the United States for many millions of dollars. The ceded territory incorporated the present?day states of California, New Mexico, and Nevada and some part of Colorado, Arizona and Utah. This begun the occupation of conquered territory (Acuna, 1991).
