1857 all over again?
The Yankees didn’t have Carrier Battle Groups, mechanized infantry, armored divisions and attack helicopters in 1861. Individual troopers were no better armed than private citizens. In fact, private citizens could buy better stuff than what was issued to the regular troops.
Given this, any armed attempt a secession is going to be short and very messy. Much as I despise what the Federales have become, I’d prefer we didn’t test the loyalties of our nation’s mililtary.