Adding they can hang out in bunkers that are 500 meters under the mountains for decades. US leadership come and go every few years and they know it. They need only wait them out. There are no bunker busters or nukes in existence that I am aware of that can do anything to the missile cities. I would love to be proven wrong by their actions ideally without sacrificing 15k ground troops which I believe is the current count on the ground not counting the 50k naval forces.