1. An EMP strike to render all of Iran electronically and electrically deaf, dumb, and blind. This is permanent and puts the Iranians back in a pre-industrial age because NOTHING electrical works.
2. Once electronically neutered, the Israelis can strike and seal the underground factories, making them into tombs for the Iranians there.
3. If Iran has a contingency plan with Hamas or Hezbullah to attack Israel, then turn the IDF loose and kick their butts — no prisoners — and tell the Syrians, Egyptians, and Saudis that if they want war, Israel will obliterate them as utterly as it did Iran.
EMP is the way for Israel to go but using EMP means others will use it on you now or eventually. So I hope Israel is hardening its electrical grid and other essential places. They should also over stock onboard (black box) computers for automobiles and keep them in shielded warehouses. Israel can make circuit boards and may have to make a lot of them if they get an EMP attack. So stockpile capacitors, diodes etc etc