Nah. It would be over long before. I think you overestimate the competency of our government and the loyalty of those who work for it.
You think some National Guard soldiers are gonna sit around policing grocery stores with starving folks around and watch them all die? When a good chunk of them know that their parents, their grandparents, their siblings and their children are all suffering the same fate?
Like I said, mass defection. It's not another group of folks they can marginalize and square away in a dark corner of their mind. It's their own people, their brothers, their sons.