I still don't desire to consider the man as being insane..and it would seem that the entire regime would goalong with threats that could provoke the entire world, so I wonder what the aim is.
Surely, threatening the whole "free world" as it is referred to, with nuclear destruction. That act may just be a bluff..but a very dangerous bluff.
Russia could perhaps accomplish a first strike, but the return would be devastating... Not only a return from the US, UK, France and any other nuclear power in the NATO group. Then would come the airpower difference and surely the US and UK being the most powerful Navies in the world would shortly devastate Russia by surface missiles along with who knows how many, submarine launched missiles.
I don't even care to contemplate the destruction involved, because there would for sure, be no "winner"..
Every nation involved, plus those not involved, would suffer unspeakable misery.