Keep in mind that Iran is perhaps on the verge of having some atomic weapons/missiles etc. If they have say an atomic bomb soon (whether theirs or from Russia/Turkey/North Korea or whatever) - who's to say they won't some day unleash it against Israel (the unpredictability of Iran threat in this equation is what makes this Middle East crisis so serious imo). One thing we know is that Israel won't ever step back/back down nor be willing to negotiate peace under any circumstances.