Ukraine has a population of 40 million and the mighty "Red Army" redux is not able to crush it? So how will the US Army (500,000 + reserves ) going to suppress 150-200+ million potential separatists spread out over half a continent?
Well, that’s an entirely different question and I really don’t want to get into some hypothetical war game scenario this early in the morning.
Whether the government would win such a war or not, I think it’s guaranteed that they would declare it. We certainly have precedent to believe that they would.