I may not have stated this well enough, but my original interest was sparked more by the fact that there is a variation of beliefs in the story, than neccesarily what the original motivations truly were in history, as I was wondering about the resulting implications in strategic game theory. MAD only works if all sides have the same standard for destruction in their beliefs and probability measure for the word assured. The US political culture has a general view that nukes end a war, if the political culture in other countries think that it is possible to develop strategies where you can get nuked and still continue with the war, then that is very important thing to be aware of.