It's known for ages that there is no defense against nuclear submarines equipped with MIRVs that could obliterate e.g. the whole West Coast in a single shot. Th

It's known for ages that there is no defense against nuclear submarines equipped with MIRVs that could obliterate e.g. the whole West Coast in a single shot. That's why North Korea went from cute game of a little rocket man to something super serious as they finally learned how to build both missiles and proper submarines. Russian defense was always based on rockets anyway, they made the conscious choice long time ago as the most cost-efficient approach. So their air carriers can be weak, planes can be only half-stealth, ships can be outdated and falling apart, but rockets are always top-notch.