U.S. Ramping Up Major Renewal in Nuclear Arms

[Frodo]

Good -seems the prudent thing to do given how much more dangerous this world has become with Putin's revanchism and China's aggression toward its neighbors.  We have to reassure our allies who seek protection under our nuclear umbrella, and better to do that with nuclear weapons in perfect working order.  

[Frodo]

Does anybody think nukes are going to keep Putin from invading another country?  It hasn't stopped USSR/Russia in the past.

Can you name any NATO countries that were invaded by the Soviet Union and/or the Warsaw Pact throughout the entirety of the Cold War?

[Frodo]

So the underlying threat is that the US will nuke Russia if it invades more countries? Somehow I don't think Putin will be too scared of calling that bluff.

No -the underlying threat (in case you didn't get it the first time) is that we will nuke Russia if it invades any NATO countries.  Putin is free to annex Belarus, for instance, but not any of the Baltic states.