Irrelevant. The effects I described would occur even if it is second strike, third strike, or fourth strike.
Either that or I think you say if a nuclear device explodes in this country, the origins of that device and the people reponsible for detonating it are all subject to reprisal in the same fashion.
Again, no one wants to do it, but without that deterrent, what other choice do you have. I'm all ears and hopeful that there are better alternatives out there. Unfortunately, I fear in my lifetime or my kids lifetime this scenario gets played out and we will have to make some kind of decision.