The cheapest interception in Israeli air defense costs about

In short: Rafael’s Iron Beam laser entered service on 28 December 2025 and burns rockets, mortars and drones out to 10 km for a few dollars per shot, against $100,000 or more for a Tamir interceptor. It does not replace the missile layers. It takes the cheap targets off their hands.

The standard mental image of Israeli air defense is a missile chasing a rocket. That image is now one layer out of date. The newest element of the network launches nothing at all, and its ammunition bill is smaller than a taxi ride.

קראו גם: The interceptor everyone forgets sits between Iron Dome and Arrow · The interceptor gets the headline, but the radar wins the fight · The million-dollar interceptor that exists because Iron Dome cannot reach high enough

Eleven years from an airshow booth to a firing position

Rafael unveiled Iron Beam at the Singapore Airshow in February 2014. Operational service came on 28 December 2025. Elbit Systems shares the manufacturing, and the system carries two official names: Laser Dome in English, Or Eitan in Hebrew, after Captain Eitan Oster, son of one of the engineers who built it. Eleven years is a long gap for a system that was already demonstrable in 2014. The gap was not marketing. It was physics.

The atmosphere was the hard target, not the rocket

Air scatters laser energy, and the wider the beam, the more of it the sky steals before it lands. Rafael’s answer was to stop firing one large beam. Iron Beam fires hundreds of small, coin-sized beams at the same object, watches through a telescope for the reflection that confirms which ones struck, then redirects the rest onto that exact spot until the target comes apart. The concentrated result is 100 kilowatts on an area the size of a coin at a distance of 10 km.

Some ambition got cut along the way. The system was originally meant to drive itself around the country. Weight and power draw ended that, so it was fixed in place and folded into the existing Iron Dome architecture instead of standing alone. It now counts as the fifth element of a layered missile defense network that already held Arrow 2, Arrow 3, David’s Sling and Iron Dome.

Where the economics actually break

Measure	Iron Beam laser	Iron Dome interceptor
Cost per interception	A few dollars, roughly $3 against a drone	$100,000 to $150,000
Shots available	Limited by electrical power on site	Limited by Tamir rounds in the launcher
Reach	Up to 10 km	Built for threats launched from further out
Main constraint	Atmospheric scattering of the beam	Saturation salvos that outnumber the interceptors
Price of the system itself	Tens of millions of dollars	Battery plus radar plus stockpile

Those two constraints in the right column are exactly why the laser was funded. An attacker firing crude rockets pays a few hundred dollars a round and forces a defender to spend six figures to answer it. Run that exchange for a week and the arithmetic decides the campaign.

Details on the system’s development history and per-interception cost are documented on Wikipedia’s Iron Beam entry.

What the laser still cannot do

Reach past 10 km, which leaves every longer-range threat to the missile layers.
Beat the atmosphere. Dense air scatters the beam, which is the limit the whole coin-sized-beam design works around.
Move. The fixed installation defends what it is parked next to.
Find its own targets reliably in a crowded sky, which is why detection and tracking radar still decides what gets engaged and in what order.
Kill anything armoured or fast enough to leave the beam before the energy accumulates.

Read the next intercept report differently

When a report says a drone or a mortar round was stopped near the border, the useful question is no longer whether it worked. It is which layer fired. A laser engagement at short range means the expensive interceptors stayed in the launcher for the salvo that actually needs them. That is the metric worth tracking, battery by battery, over the coming year.