Did America not win the war with Mexico many years ago?
The US-Mexican war happened between 1846 to 1848. As a consequence of the war the United States acquired the northern half of Mexico. This area later became the U.S. states of California, Nevada, Arizona, New Mexico and Utah. The defeat of Mexico was the first time an enemy force occupied the capitol of the nation. The French would also occupy Mexico City in the 1860’s Relations between the United States and Mexico remained tense for many decades to come, with several military encounters along the border.