The states of [[Texas]], [[New Mexico]], [[California]], [[Arizona]], [[Nevada]], [[Utah]], and parts of [[Wyoming]], and [[Colorado]], were part of Mexico until the [[Mexican American War]]. Many U. S. citizens in this region speak Spanish as their native language. | The states of [[Texas]], [[New Mexico]], [[California]], [[Arizona]], [[Nevada]], [[Utah]], and parts of [[Wyoming]], and [[Colorado]], were part of Mexico until the [[Mexican American War]]. Many U. S. citizens in this region speak Spanish as their native language. |