By Dave Anderson:
The Israelis want to build and deploy a comprehensive projectile defense system that can shoot down anything bigger than a 40mm rifle launched grenade. It is a technologically difficult project, but within the realm of possibility. It has just one problem; the costs are enormous and the best way to beat the defense package is to overwhelm the system with plenty of cheap projectiles.
Defense Tech has more information:
Yet, the IDF is reluctant to buy it, grumbling over the cost of each Iron Dome intercept, estimated at nearly $50,000, compared to the estimated $500 cost of a Palestinian rocket. Press reports put Iron Dome development costs at $250 million, with each battery costing about $50 million.
The Israeli government wants to buy thousands of Iron Dome interceptors. An improved defensive system lowers the cost of offensive war into southern Lebanon as the number of successful Hezbollah strikes would probably decrease. However Hezbollah has an economical counter-measure. It is to launch more cheap rockets to force the Israelis to spend $100 for every dollar Hezbollah spent to attack Israeli. That is not a sustainable spending ratio for Israeli even if the Iron Dome system is partnered with instant counter-battery capabilities. At that point, setting up rockets and firing them from a safe distance is a reasonable counter-measure to avoid incoming artillery two minutes later.
When the technological solution requires a 100:1 spending advantage, it is not much of a solution to a broad problem but a resource sink.
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