The nations themselves would make a clear promise in front of their people
?
We'll, we know that works. Remember the clear promise made to Nevile Chamberlain?
You do not need nukes for keeping Iran from getting nukes
There are nations that are friendly to Iran that would like not to see an Armageddon. If America has nukes they have a real good reason to intercede to influence Iran. Our hand is much better with nukes.
If America has no Nukes and Iran wants to wipe out America then that's that.
FTR, there is no way in hell India is getting rid of its nukes.
There is no way in hell Pakistan is getting rid of its nukes.
There is no way in hell Israel is getting rid of its nukes.
It's a lot of fun but in the end it's just make believe and will only grow hair on your brain. I hate to be cynical but no diplomats take this serious.
To get rid of nukes you've got to get rid of the underlying problems first. So long as India and Pakistan are at each others throats they won't trust the other to disarm.
Matteo,
I'm not going to try and change your mind on this. It's a non-starter at this juncture. You have hundreds of, at the moment, very deep and intractable problems. You might as well ask the Israelis and Pakistanis and the Indians and Pakistanis to live together in harmony.
That's a good idea, BTW. Get back to me when you get that accomplished.