deterrence either conventional or non conventional only works as that, a deterrence, once the other party has nothing to lose your deterrence becomes a liability for your own self.
crusaders plan failed, they have no other option left than either send troops which will have enormous consequences or throw nukes which will have cascading effects that will send the humanity one step closer towards extinction.
iran is fighting like lions, they are an inspiration for helpless and the oppressed, once this is over no superpower will have the guts to even look iran eye to eye.