Israel has no realistic military option against Iran (with US disapproval). The distance to Iranian nuclear installation is bigger than what the roundtrip range of the most capable Israeli plane can do without midair refueling. (Where?) The installations are also well dispersed and some locations may be unknown, so striking them may only cause a delay of a couple of years in the Iran program. In short, an attack on Iran is a fantasy that diverts the minds of Israeli leaders from important tasks. Here is a completely different alternative for Israel: 1. Make peace with Syria. The Syrians offered it to Sharon and Netanyahu (following Hafez Assad strategic decision to make peace with Barak). It is true that Assad's regime is shaky now, but the situation will be stabilized in a few months one way or the other. Syria at peace will kill Hizballah by depriving them of access to weapons, and get Meshal and other Palestinian rejectionists out of there. Cost: The Golan. 2. Make peace with Lebanon. Papa Assad stated this will follow, and Syria can deliver. No more arms supply to Hizballah, and it will become a political party. 3. Make peace with the Palestinians. Abbas wants it, and Fayyad is establishing a state whether Israel likes it or not. Cost: Practically all the Territories except for some exchanges. 4. Make peace with all Arab states, as per the Saudi plan. 5. Iran, having been pushed out of the region, looks elsewhere to cause trouble. Iraq and Afghanistan will keep them and the US busy. Israel is no longer of central interest to them.
from the article: Israel, U.S. discuss triggers for military strike on Iran