I'm an armchair historian, so I wouldn't take this to the bank. My thought is that Texans have piss poor judgment when it comes to wars. They win one fight against Santa Anna to gain their Independence in 1836 and they've been losing ever since.
Civil War - Chose the wrong side on that one guys
Vietnam - LBJ screwed the pooch on that one
Iraq II - Inspired a new term among the armed forces...BOHICA - Bend Over Here It Comes Again.
Basically, I'm saying Texans should never be allowed to start another War. They have no judgment.