The prevailing thinking from western experts is that if Putin does follow thru on his threat to going nuclear, he will use small tactical nuclear weapons as opposed to mega-ton strategic nuclear ones! The theory is that his Generals will prevent him in using strategic nuclear weapons against the West.
I’m reminded of Hitler telling his Generals that he would never fight a two front war but of course that is exactly what happened. What is the West’s response to Putin’s use of tactical or strategic nukes? Do we return fire with one or the other depending on Putin’s choice and where does this all end up?
And that is all I’m going to say about that!