>>507298357 (OP)The Germans had shipped us a boat load of mausers to use against the gringosys in the early 20th century. So a superpower helping us isn't out of the question. But yes, just based on game theory, a secession is likely to happen. Would it start a war with the US? Absolutely. With Mexico? I doubt it. They would likely stay out if it in an official capacity. Now, whether the US would demand access to Mexico for a direct southern assault, that's a different question. The US might demand Mexico join in the effort to suppress a state seeking it's right of self determination. And if didn't, the US might declare war on them. But I don't think so. US arrogance might they could win without expanding it. Something they'd be wrong about.