1. They are already doomed.
2. They have a way to stop all the incoming nukes safely or avoid retaliation.
3. The enemy is non nuclear, and there is no other way to win.
And it does not matter whose nukes are more powerful. that is propaganda.
If a nuclear exchange occurs, both countries will be annihilated. That simple.
Read more about the MAD. You will discover that during the last 50 years, the strategists have been looking for a way to win a global nuclear exchange. And they have found none. If it begins... It's loss for both sides. And i shall remind you that the most powerful super computers in the world are or have been dedicated to simulate possible outcomes. http://en.wikipedia.org/wiki/Nuclear_war http://en.wikipedia.org/wiki/Mutually_As...estruction
Now, lets go back to topic. It was just a comment. Don't turn this into the nukes thread.
(If you find any mistake in my English, please let me know via a PM)
(Really, I speak terrible English, so please, tell me if I make mistakes. I'd like to improve it a bit )