BREAKING: Rockets fired at northern Israel from Lebanon. Iron Dome shoots one down. Developing…

Iron Dome battery deployed in North (Photo credit: Ben Hartman, Jerusalem Post)

Iron Dome battery deployed in North (Photo credit: Ben Hartman, Jerusalem Post)

(Washington, D.C.) — “Four rockets were fired from Lebanon into Israel on Thursday afternoon,” reports the Times of Israel. “There were no immediate reports of casualties. The IDF promptly retaliated, attacking targets in south Lebanon, Lebanese media reported.”

” The red alert siren sounded in the cities of Nahariya, Acre, and Kiryat Shmona, and residents reported hearing explosions,” noted the Times. “One of the rockets fell on the outskirts of a small town near Nahariya. An Israeli Iron Dome battery intercepted a second rocket, Channel 2 reported. It was initially unclear where the other two rockets fell….Israel last week deployed a sixth Iron Dome battery north of Tel Aviv, with an eye to the missile threat from the north. The anti-missile system is a keystone in Israel’s air defense array and successfully intercepted hundreds of short- and medium-range missiles shot at Israeli cities during the conflagration in Gaza in November.”

The Jerusalem Post is reporting the number of rocket may be “three” or “four.”

Arutz Sheva, Israel’s National News channel 7, reported that IDF Radio was indicating that “bomb shelters in the northern city of Akko (Acre) have been opened for public use, and the IDF is urging residents of the north to remain close to shelters. The IDF has denied earlier reports from Arabic media that it responded to the rockets with artillery fire. Lebanese media has been reporting that at least 2 of the rockets were fired from the Ras al-Ain neighborhood of the city of Tyre. According to initial reports, one rocket was intercepted by the Iron Dome missile defense system, while three others struck in ’open areas.’”

Haaretz notes that “two weeks ago, four IDF soldiers were injured in an explosion near the Lebanese border. According to a statement made by the Lebanese army the incident took place on the Lebanese side of the border.”

This is a developing story. I’ll post more details as they become known.

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Tensions with Syria escalate. Netanyahu orders Iron Dome batteries deployed in North. Number of Israelis seeking gas masks triples.

“Two Iron Dome batteries have been deployed in northern Israel over the past few days, the IDF said on Sunday,” reports Ynet News. “One battery of the missile-defense system was deployed in the Krayot area, while the other was installed in the Galilee region. Additional, fully operational batteries have already been deployed in the Haifa are and in other locations. About a week ago the security establishment successfully tested an upgraded version of the Iron Dome rocket defense system in Israel’s central region. The upgrades are designed to give the Iron Dome ‘improved capabilities against an unprecedented range of threats,’ the Defense Ministry said. ‘The test, which was completed successfully, will lead to an upgrade in Iron Dome’s operational capabilities.’”

Meanwhile, Ynet also reports: ”The defense establishment’s concerns about the potential threat of chemical weapons from Syria and Hezbollah has not gone unnoticed by the Israeli public. The Israel Postal Serivce reported Wednesday that more Israelis are updating their gas masks and ABC kits. In fact, the number of Israelis changing their nonconventional warfare protection kits has nearly tripled over the past month. The public demand can be attributed to recent upheaval in Syria and the alarming possibility that the regime’s arsenal of nonconventional weapons may find its way to Hezbollah, as was implied by IAF Chief Maj.-Gen. Amir Eshel Tuesday. ‘Syria is undergoing tectonic changes. Given its massive arsenals, Israel may find itself dealing with nonconventional weapons on its borders,’ Eshel said.”

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Joel C. Rosenberg’s Blog

Inside Israel’s Iron Dome system: why the cost of each interceptor is dropping fast

irondomeJust to be clear: I’m a huge fan of Israel’s “Iron Dome” rocket and missile defense system. It’s downright miraculous, and it’s saving a lot of lives, probably including my own.

As readers of this column know, my Joshua Fund colleagues and I were in Israel for the entire eight-day war with Palestinian terrorists in Gaza. Numerous times we heard the air raid sirens go off and had to run into bomb shelters with our Jewish and Arab friends. We also personally witnessed the Iron Dome system in action — its interceptors zig-zagging through the skies over Ashkelon, for example, at supersonic speeds and destroying the incoming rockets with earth-shaking booms. The results were stunning. The system destroyed about 421 of the 1,500 or so rockets fired at Israel, and with a success rate of some 90%. In the end, only six Israelis died during ”Operation Pillar of Defense,” despite the near constant barrage of Palestinian attacks. Sadly, most of those were from fathers standing outside to watch the rocket war, while their wives and children were safely inside their bomb shelters.

The Israeli-designed system can determine whether a Palestinian rocket will land in an open field or on a house or business. If the former, Israel doesn’t fire an interceptor, thus saving money. If the later, Israel fires multiple interceptors to destroy the incoming rocket before it can do damage or kill. An interceptor in mid-flight that misses its target or isn’t needed automatically self-destructs so as to minimize further casualties. Understandably, Israelis are in love with the new system. They’re ecstatic that they have a new level of protection. They know the system is not perfect, but it’s better than they had in the last war, and they know it’s steadily improving and is making the job of Iran, Hamas and Islamic Jihad that much harder.

One of the issues my colleagues and I discussed while we were in Israel was the high cost of the Israeli interceptors. That’s why I was so intrigued this morning when I read a fascinating story in the Jerusalem Post about the Iron Dome. Consider:

  • ISRAEL’S COSTS PER INTECEPTOR ARE DROPPING: The Post noted that while the cost of each interceptor originally built for the system was between $ 40,000 and $ 50,000 a piece, most of those costs were R&D related. Now the cost of producing new interceptors is dropping fast as Israel produces more of them. “Iron Dome’s Tamir interceptors don’t really cost $ 40,000 to $ 50,000 each to manufacture,” reports the Post. “Like any high technology system, the vast majority of the costs of Iron Dome are systems development and manufacturing setup. These fixed costs are spread  over the number of items estimated to be manufactured and priced accordingly.  However, if the number of items produced substantially exceeds the initial  estimate, costs drop proportionately. The actual marginal cost of production of a Tamir interceptor is low and reflects the costs of the basic raw  materials; metal, fuel, explosives and electronic components used in its manufacture, and the labor required to run the assembly line. If the IDF ends up ordering 10 times as many interceptors as originally estimated, then their ‘cost’ will likely drop to around $ 5,000. At 100 times as many the “cost” will approach the marginal cost of less than $ 1000.”
  • THE IRON DOME’S SHOOT-DOWN ACCURACY IS IMPROVING: “Iron Dome is fundamentally a highly advanced computer system with a very rapid upgrade cycle,” reports the Post. “So far Iron Dome is matching pace with the iPhone for major software and hardware upgrades, and consequent performance  increases. This will not only continue but will actually accelerate in accordance with Moore’s Law and Ray Kurzweil’s Law of Accelerating Returns which state that the performance of computer systems increases exponentially with time. With each upgrade the interception rate will improve and the range of missiles it can intercept may also improve further. It is therefore that we can expect Iron Dome to reach a 95 percent or higher interception rate in the next year or two, and to continue to improve as the speed and processing power of the computers that make up its brain and eyes (radar) advance. The  practical upshot of this is that the number of rockets per Israeli fatality has risen from 50-75 (Lebanon and Gaza pre-Iron Dome) to 300 in 2011 (75%  interception) and around 500 in 2012 (90% interception), despite Hamas using  more lethal rockets.”
  • IRAN’S AND HAMAS’S COSTS PER ROCKET — AND PER ISRAELI KILLED — ARE SOARING: “The real cost of  the rockets and missiles which Iron Dome intercepts is vastly underestimated by most commentators,” the Post asserts. “Grad rockets may well cost Iran only $ 1,000 each on the open market, but this is not the delivered cost to Hamas in Gaza. The supply line from Iran to Gaza is an extremely convoluted and expensive one which  involves huge losses from IAF action bombing convoys and factories in Sudan, and  interception by western navies. Large bribes have to be paid at every step of the way, particularly to the Beduin in Sinai and the Egyptian soldiers in Rafah who are supposed to be stopping the smuggling. And the losses continue once the Grad gets to Gaza, with the IDF regularly destroying rocket caches. Thus, 1,000 Grads, which cost Iran $ 1 million to purchase, may end up as 300  Grads which cost a further $ 2 million in ‘delivery charges.’ This turns a $ 1,000 Grad rocket in Iran into a $ 10,000 Grad rocket in Gaza….The strategic implications are that the current rocket-based terror strategy of Hamas and Hezbollah has been rendered both  ineffective and economically unsustainable. I estimate it is currently costing  Hamas (and thus its patron Iran) around $ 5 million (500 rockets at $ 10,000 each) to murder a single Israeli. When Iron Dome reaches 95% interception rate these figures will double and at 97.5% they will double again.”

We could all wish the Iron Dome system — and Israel’s newly-developed system to shoot down medium-range missiles, known as “David’s Sling” — weren’t needed. But they are. Let’s keep praying for peace and security for Israel and her neighbors. But let’s also be grateful for all the scientists and engineers that developed these system, for the leaders who had the foresight to insist that they be built (including Ronald Reagan who was ridiculed for insisting upon the development of missile defenses), and for the American taxpayers who have been helping to foot some of the bills.


Joel C. Rosenberg’s Blog