Former CIA officer, Phillip Giraldi, says there is not really any possibility that Israel could do significant damage to the Iranian nuclear program by themselves.
Israel has no dedicated bomber force but it does have an estimated 125 advanced F-15I and F-16I’s, which have been further enhanced through special avionics installed by the Israel Aircraft Industry to improve performance over the types of terrain and weather conditions prevailing in the Middle East. The planes are able to fly long range missions and very capable in a bombing role but they do have their limitations.The Israelis have another serious problem - Iran is a long way from Israel and the planes would have to be refueled at least once to get to Iran and again to make it back home. His conclusion:
It is generally agreed that any attempt to destroy the hardened and well-defended Iranian nuclear sites would require use of the United States-provided GBU-28, a five thousand-pound laser-guided smart bomb that can be directed to the target. The GBU-28 is regarded as accurate and able to penetrate deep into a target, which is why it has been described as the “bunker buster.” Exact performance specifications of the weapon are classified, but it is believed to be able to penetrate twenty feet of reinforced concrete. Whether that would be enough to take out the expected Iranian targets at the research centers in Natanz and Fordow, the heavy water facility at Arak, and the operating reactor at Bushehr is unknown and some analysts have opined that it might require multiple hits on the same spot to do the job. As Bushehr, the most accessible target of the three, is an active reactor, an attack would release considerable contamination.
Assuming that the US has supplied Israel with a sufficient supply of GBU-28s to go around to all the available aircraft, there remain two additional problems with the weapon that impact Israeli ability to stage an attack. First, it is so heavy that only Israel’s twenty-five F15Is are able to carry it, one bomb for each plane. For optimum use against a target, the GBU-28 also requires a clear line of sight, which means that the plane has to be flying low and relatively slowly, making the fighters more vulnerable to ground defenses, particularly with their maneuverability limited due to the bomb load. This first problem creates the second problem, which is that an attack will require a separate fleet of F-16 fighters unencumbered by GBU-28s to go in first and suppress the defensive fire, further complicating the mission.
On balance, all of the above suggests that the frequently repeated threat by the Israeli leadership to attack Iran is not a serious plan to take out Iran’s nuclear sites. It is more likely a long running disinformation operation to somehow convince the United States to do the job or a deliberate conditioning of the Israeli and US publics to be supportive if some incident can be arranged to trigger an armed conflict. If one believes the two presidential candidates based on what they said in Monday’s debate, both have more-or-less conceded the point, agreeing that they would support militarily any Israeli attack on Iran. Whether Romney or Obama is actually willing to start a major new war in the Middle East is, of course, impossible to discern.Tail wagging the dog anyone?