IMHO, a very shallow representation of the situation. Thought that a much better analysis could come from a former NSA expert. Looks like it is not his area of strong expertise :-) The BBC film, already discussed in another thread, gave much more food for thought :-)
Most of paranoid cries about "Russian invasion" are eagerly supported (and often generated) by the East Europeans countries who recently joined (or yet dream to join) NATO in order to get more funding plus indirect support from deploying other troops and hardware on their territory.
As usual, those "strategists" use old paradigms relevant to previous wars. What hell the Russians would send tanks to the Baltic states? WWII ended 70 years ago...These countries are nice touristic destinations and let them remain as such. We have enormous territory yet to be developed.
Better recall Yugoslavia that was really bombed by NATO in the middle of Europe. And it was NATO to demonstrate that existing (-ed) borders in Europe did not mean much. I mean creation of a new pseudo state of Kosovo. After that, talking about Crimea is just not serious.