if you vaporize the 2 big cities of moscow and st. petersburg you get 18 million on a good day. after that its some small cities and towns scattered across the continent of asia. russia has an arsenal of over 6,000 nuclear weapons. sun zhu would say that you always need to do a risk vs reward assessment before engaging in a conflict unnecessarily.  if russia were to use a nuke on the ukraine the best thing any rational person could do is say "that is their former territory they granted independence that has been meddled with by outside powers. well within their sphere of influence and certainly capable of being a threat to their national security and sovereignty. their use of a nuclear weapon is extreme but, also justifiable with the same arguments used by the us for nuking japan, and really none of my damn business and i have no right to endanger the lives of my fellow citizens by initiating a conflict with a nation that has just used a nuke like the us did to the japs."  of course all of this is silly because russia wouldn't use a nuke on ukraine, if they use them it will be on london, paris, rome, brussels, berlin, jerusalem, nyc, washington, district of criminals, etc.
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