If Iran truly does want it's own nuclear weapons then they will have them. The localized attacks by the Zionist regime will only encourage Iran, rather than discourage them. That's a lesson America should have learned by now.
But as to the example of the Zionist regime, why would they desire to have nuclear weapons when the use of such weapons will direct the revenge back on them?
Nearly all small countries have a nuclear big brother as a friend and that's encouraged by the nuclear superpowers. The Zionist regime could be without nuclear weapons and be equally safe under the US umbrella. And as the situation develops, Iran could soon be under China's and/or Russia's nuclear umbrella.
Conclusion: There's really no reason why the world needs to live in fear of the Zionist regime starting WW3. There are established rules they have to play by the same as the nuclear powers. A direct strike on the enemy is forbidden due to the M.A.D. factor.
As long as neither side pushes the envelope too fare, the world is relatively safe. However, we have learned quite recently that all bets could be off with Trump. Psychopathy in a country's leader is a very dangerous wild card.
Are we all supposed to take Trump serioiusly when he threatens the use of America's nuclear arsenal? Or can we be confident thatt there are American Generals who are willing to fall on their sword to 'eliminate' the mental illness threat?