Iran has no need to use nuke. They can take out the 8 Nuclear sites in Israel that are sitting targets and the place will be irradiated forever to the extend that not even a lizard can live therefor the next 40,000 years at least.
That is precisely why Israel is not using any Nukes on Iran. Otherwise they have no inhibitions, its not like they are avoiding using the nukes out of the good of their heart. they made those plants and now there is no turning back. even is disassembled, they will be hazard forever.
- As for the endgame, for Israel the endgame it is somehow taking out the Fordow plant in Iran. and maybe take out the Khamenei Govt in the process
- For Iran it is to make things so bad for Israelis that Israelis force Nethanyau out, so he finally goes to his corruption trial and all of these wars end, as he and Lukid are running nonstop conflicts to avoid losing their 25 years of power.