It is important to note in this case that the military, at least in the United States, tends to be comprised of rather conservative individuals. The U.S. Military has things like lots and lots of tanks, aircraft carriers, missile launchers, tactical nuclear bombs, soldiers, more guns than the NRA by far, barbed-wire-enclosed guarded strongholds and bases throught the country and even the world, has close ties with the CIA and NSA, supplies, MRE's, established training camps and more. Suffice it to say, that sort of civil war would be rather one-sided indeed.