Some of this is inspired by Red Dawn. Some of this is inspired by Socio-Biology.
Here's the Story:
WWIII happened, but it wasn't Russia or China, or even the middle east that started it. It was America. The war in the middle-east had been at a standstill for years. Mexico eventually attempted to Annex Arizona, California, and New Mexico. The Mexican President was almost successful, as the American President didn't care, or didn't pay attention. In either case, Mexico was brutally shot down. Especially along the Texas and Arizonan border. The majority of civilians owned guns, so the president of mexico knew that sending in an invasion force wouldn't work so he sent people in. Civilians. To burden the american school systems. It worked, to an extent. It collapsed the educational systems of the states, but the hearts and minds of the people, the conservatives anyway, were american. They weren't as flippy-floppy as the Liberals. However, Any mexican, illegal-alien violence was met with equal violence. Eventually, the local militia's and those deployed as national guard took action and shut out mexico.
[WIP]