Really I don't think weapons of mass destruction determine any military power over another country more-so giving a country more political leverage right? The last time a nuke went off was at the end of world war 2, we had the giant scare of the cold war but the Russians foolishly bankrupt the hell outta themselves, no nukes ever went off.
The way I see it nukes basically tell other countries that we have power and we should be acknowledged and feared. But we won't ever use them (I hope).
I just don't see the point in having spent all that money on creating nukes if they were going to rot away in their silos, personally I'd rather they all be destroyed and have humanity not spend and waste so much money on something not only horrible but in the end, useless the way it is now.