Iron Dome displayed at Ben Gurion airport 370.
(photo credit: Alon Basson/Defense Ministry)
Dr. Theodore Postol, a professor at MIT, claimed in his Haaretz article on March
31 that contrary to the Defense Ministry claim that the Iron Dome has succeeded
in intercepting more than 80 percent of rockets launched into Israeli population
centers during November’s Pillar of Defense operation, the actual proportion
never exceeded 10 percent.
Postol based his claim on video clips of the
launches that were shown in the media and on the Internet, as well as on the
number of property damage claims submitted to the Treasury’s Compensation
He accuses the IDF of concealing the facts by not revealing the
location of rockets that fell on Israeli soil that were not intercepted by the
Iron Dome, arguing that disclosure of these locations would not pose a security
risk. Finally, Postol goes a step further and accuses the government of
providing Israeli and US citizens with false information.
This could not
be farther from the truth. Postol’s “analysis” of these public video clips and
his underestimation of the Iron Dome’s effectiveness are meaningless and his
conclusions are completely baseless.
In those clips, only the Iron Dome’s
trail of smoke can be seen. The Grad rocket that it is about to intercept,
however, cannot be seen.
To assess whether the Iron Dome’s missile
successfully hit the Grad rocket, the trajectories of both must be observed,
which is possible only through a full sky image obtained from sophisticated
security sensors in which both projectiles can be observed simultaneously. This
information is never released to the public since it would reveal the IDF’s
discovery and tracking capabilities.
In short, the Israel Air Force, the
Defense Ministry and Rafael Advanced Defense Systems have studied each and every
interception completely, and the results are conclusive: The Iron Dome’s success
rate is as published.
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Postol’s claim that disclosure of the locations in
which Grad missiles escaped Iron Dome interception and hit Israeli soil would
not help the enemy improve its accuracy indicates more than anything else his
lack of understanding of missile warfare. A barrage of Grad rockets that is
aimed at a specific point is liable to strike anywhere up to a kilometer from
that point. Although the enemy cannot control where the rocket lands, it has
full control over which point it aims the cluster of rockets at and can change
it by tilting, raising or lowering the multiple rocket launcher.
enemies in Gaza and Lebanon try to pick points that fall right in the center of
Israeli cities so that all the cluster rockets fall within the most densely
populated areas and cause the maximum number of casualties and damage, but often
they are not successful.
Errors made by the enemy in choosing a center
point can result in most or even all of the rockets missing population centers
and failing to inflict significant damage. Publicizing the exact location of
these hits would help the enemy improve its aim and thereby raise the number of
casualties and amount of damage. Publicizing this information would endanger the
lives and property of Israeli citizens.
Postol argues that Hamas already
knows where the points of impacts are, from “people who could visit these places
within the range” (i.e. spies). I suggest that he try to find the
locations that were hit – then he would realize how hard it is.
event, even if that were the case, why should Israel help Hamas by giving it
this information on a silver platter just to satisfy a distinguished professor
living in peaceful Massachusetts, far from the Gaza rockets? Postol also claims
that the high number of property damage claims following Pillar of Defense
proves that the Iron Dome’s success rate must be lower than that reported, since
in his opinion it is unlikely that such a small number of hits would cause such
a large number of claims. It turns out that he did not bother to compare this
number with data from previous attacks, and therefore could not know how many
claims are reasonable.
In the Second Lebanon War in 2006, for example,
4,000 rockets were launched into unprotected areas in northern Israel, a quarter
of which hit in populated areas. More than 30,000 property damage claims were
In Pillar of Defense, 1,500 similar types of
rockets were fired into Israel, a third of which hit or would have hit populated
areas. A simple calculation shows that if the Iron Dome system were not in
place, the number of property claims would have reached 14,400. In actuality,
only 3,165 claims for submitted, one-fifth of the number that would be expected
if the Iron Dome were not operational – further evidence that the system has a
high interception rate. Just as Balaam in the Book of Numbers tries to curse the
Israelites but only blessings come out of his mouth, so too is Postol trying to
curse us, but ends up blessing us.
His claim that Israel has not provided
the US with accurate data on the Iron Dome’s performance is ridiculous. Anyone
who has had any contact with the US government knows that it would never agree
to allocate such a large amount of funding to manufacture Iron Dome systems
without carefully checking their performance.
And the US has a state
Finally, Postol’s accusation that Israel has been lying
to its citizens and to its greatest ally – the US – does not even merit a
response. To the distinguished professor I say: Those who unjustifiably reject
others because of a particular defect, usually suffer from this defect
themselves.The author served as the first director of the Israel Missile
Defense Organization in the Defense Ministry. Translated by Hannah Hochner.
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