You really should go back to school and learn the HISTORY of Texas and the Mexican-American War. That land that your image claims was stolen was purchased at the cost of $15,000,000 as part of the Treaty of Guadalupe Hidalgo at the end of that war. Mexico didn't even really care about that land at that time because the Indians were kicking the shit out of the Mexican Army every time they came north.
Here's what you REALLY need to know, Lakhota...
I totally agree with your revised map...except that the green part should be YO's and the white part should be NACHO's.