Here are some fact that are out there about Israel.
“Estimates as to the size of the Israeli nuclear arsenal vary between 75 and 400 nuclear warheads. It is estimated that the Israel nuclear deterrent force has the ability to deliver them by intermediate-range ballistic missile, intercontinental ballistic missile, aircraft, and submarine-launched cruise missile.”
Well I think that if Israel feels that they will be destroyed then Israel will destroy all the middle east! Even the lower number of 75 nuclear bombs would destroy the middle east and maybe the radiation may go all over the world.
Israel not only has the power to destroy Iran but it has the power to destroy all the middle east!