Great. Now the Kerrville Music Festival is going to be even more unbearable!
I agree that most Texans and CAS folk would love an all out war with the Azzies, but War! makes it pretty clear it's just rumors of war and diplomatic posturing... for now.
Don't forget that Texas seceded from the CAS just to start a war with the Azzies and we got our butt's handed to us in a hand basket. Then we had to run back to the CAS with our hats in our hands. There have to still be people around who remember that war and the humiliation it caused. Folks who lost fathers and sons who may not be keen to lose more just for Southern pride and honor(or On-ah, if you prefer.)
I wouldn't call Fort Hood close to San Antonio. It's closer to Waco and Temple. In 2070, Austin is a split town that has become an ostensible military base itself, so that might be where the heavy hitting would begin.
I've had an outline and a healthy amount of copy for an Austin supplement for a while now.
San Angelo is sort of a CAS/Azzie border city, too. I tried to run a game there, but one of my players grew up in San Angelo, so when I said "You all start off in San Angelo" she said "I leave and never come back. Like everyone else who grew up there." So there is that.