If this happened Israel might have trouble denying it has nuclear weapons! Of course maybe they could say they borrowed them from the US. It is hard to predict what will happen if Israel attacks Iran with conventional weapons let alone nuclear ones. Probably Israel will choose not to use the nuclear option and reserve it for defense. No doubt Israel will be happy should the U.S. attack Iran and save Israel the trouble.
Israel could use tactical nukes on Iran: thinktank
By Dan Williams – Fri Mar 26, 7:13 am ET
JERUSALEM (Reuters) – Deeply concerned as it is by the risk of a nuclear-armed Iran, Israel has never even hinted at using atomic weapons to forestall the perceived threat.
But now a respected Washington think tank has said that low-radioactive yield "tactical" nuclear warheads would be one way for the Israelis to destroy Iranian uranium enrichment plants in remote, dug-in fortifications.
Despite the 65-year-old taboo against carrying out -- or, for that matter, mooting -- nuclear strikes, the Center for Strategic and International Studies (CSIS) says in a new report that "some believe that nuclear weapons are the only weapons that can destroy targets deep underground or in tunnels."
But other independent experts are on record warning that such a scenario is based on the "myth" of a clean atomic attack and would be too politically hazardous to justify.
In their study titled "Options in Dealing with Iran's Nuclear Program," CSIS analysts Abdullah Toukan and Anthony Cordesman envisage the possibility of Israel "using these warheads as a substitute for conventional weapons" given the difficulty its jets would face in reaching Iran for anything more than a one-off sortie.
Ballistic missiles or submarine-launched cruise missiles could serve for Israeli tactical nuclear strikes without interference from Iranian air defenses, the 208-page report says. "Earth-penetrator" warheads would produce most damage.
Israel is widely assumed to have the Middle East's sole atomic arsenal. Israeli leaders do not comment on this capability other than to underscore its deterrent role; President Shimon Peres has said repeatedly that "Israel will not be the first to introduce nuclear weapons to the region."
A veteran Israeli defense official, speaking on condition of anonymity, said preemptive nuclear strikes were foreign to the national doctrine: "Such weapons exist so as not to be used."