Iron Dome Explained: How Israel’s Rocket Defense Works
Iron Dome explained: how Israel’s radar, battle management center and Tamir interceptors stop rockets, plus range, U.S. funding and limits.
Short answer: Iron Dome is Israel’s short-range air defense system, built to shoot down rockets, mortars, drones and other threats at ranges of about 2.5 to 43 miles. Developed by Rafael Advanced Defense Systems, it uses a radar, a battle management center and launchers holding 20 Tamir interceptors each. Its software fires only at projectiles heading toward the area it protects, such as cities. The United States has provided more than $6 billion for Iron Dome, and part of the system is now co-produced in the U.S. by RTX.
Last updated: October 28, 2026
- Developer: Rafael Advanced Defense Systems (Israel)
- Intercept range: about 2.5 to 43 miles (CRS)
- Interceptor: Tamir (U.S. version called SkyHunter)
- Launcher: 20 interceptors each
- U.S. funding: more than $6 billion to date
- Next layer: Iron Beam laser, which received $1.2 billion in U.S. funding in 2024
Iron Dome explained: what it does
The Congressional Research Service report on U.S. aid to Israel describes Iron Dome as “a short-range anti-rocket, anti-mortar, anti-drone, anti-missile, and anti-artillery system (intercept range of 2.5 to 43 miles) developed by Israel’s Rafael Advanced Defense Systems.”
Its key feature is selectivity. CRS says the targeting system and radar are designed to fire “only at incoming projectiles that pose threats to the area being protected,” generally strategically important sites and population centers. It is not configured to fire at rockets that will land outside that area. This keeps costly interceptors from being used on rockets headed for open ground.
How a battery works
CRS lists three main parts of an Iron Dome battery:
- A radar unit that detects and tracks incoming projectiles.
- A battle management and control center that predicts where each threat will land and decides whether to engage.
- Wheeled launchers, each holding 20 Tamir interceptors.
When a threat is engaged, the Tamir interceptor’s warhead detonates the incoming warhead in the air. CRS notes that while the software can make split-second targeting decisions, “human operators oversee the system, reload the launchers, and provide force protection for the unit.” Batteries can be moved as threats change, and there is a naval version called C-Dome.
Specs at a glance
Figures come from CRS unless noted.
| Feature | Iron Dome |
|---|---|
| Developer | Rafael Advanced Defense Systems |
| U.S. co-production partner | RTX, through the joint venture Raytheon Rafael Area Protection Systems |
| Threats | Rockets, mortars, artillery, drones and some missiles |
| Intercept range | About 2.5 to 43 miles |
| Interceptor | Tamir (U.S. version: SkyHunter) |
| Interceptors per launcher | 20 |
| Main components | Radar, battle management and control center, launchers |
| Naval version | C-Dome |
| U.S. funding to date | More than $6 billion |
Combat record
Iron Dome has been used heavily in conflicts with Hamas and Hezbollah, including during the war that began on October 7, 2023. CRS cites Rafael’s claim that Iron Dome systems “have made over 5,000 successful interceptions with a reported mission record success rate of over 90%.” That figure comes from the manufacturer and has not been independently verified in the CRS report.
Iron Dome is the lowest layer of Israel’s missile defense. David’s Sling handles longer-range rockets and cruise missiles at 25 to 186 miles, according to CRS, and the Arrow systems engage ballistic missiles at higher altitudes. For the larger U.S. systems often compared with these, see our guides to S-400 vs Patriot and THAAD.
U.S. funding and co-production
CRS says the United States has provided over $6 billion to Israel for Iron Dome batteries, interceptors, co-production and maintenance. U.S. support began in fiscal 2011.
Because Israel developed Iron Dome alone, it originally kept the technology rights. In March 2014, the two governments signed a co-production agreement that allowed components to be made in the U.S. and gave the Missile Defense Agency full access to the technology. CRS says the U.S. workshare stood at 30% according to 2023 testimony. RTX and Rafael formed a U.S. joint venture in 2020, and Tamir interceptors are made at an RTX facility in Tucson, Arizona, and elsewhere before final assembly in Israel. Our explainer on U.S. military aid to Israel covers the wider aid relationship.
The U.S. Army’s own Iron Dome batteries
The U.S. Army bought two batteries as a stopgap. The Army reported that the U.S. and Israel signed an agreement in August 2019 to buy two Iron Dome Defense System-Army (IDDS-A) batteries, which were delivered in 2020. In a 2021 live-fire test at White Sands Missile Range, soldiers from the 3-43 Air Defense Artillery Battalion engaged eight cruise missile surrogate targets.
The Army described the batteries as an interim cruise missile defense while it acquired its own Indirect Fire Protection Capability (IFPC) system. CRS says the batteries cost $373 million and were leased back to Israel in 2023. Our report on the IFPC interceptor shoot-off follows the Army’s replacement program.
Iron Beam: the laser layer
Israel is adding a laser system called Iron Beam. CRS says a 2024 supplemental appropriations act included $1.2 billion for Iron Beam, “the first dedicated U.S. funding for this system.” A laser has no interceptor to buy for each shot, which could help with the cost problem that cheap rockets and drones create for missile-based defenses.
Peter’s World’s view
Iron Dome’s design choice, ignoring threats that will fall on empty ground, is what made a missile-based defense against cheap rockets workable at scale. The official record also shows how closely it is now tied to the United States through funding, co-production and the Army’s own brief ownership of two batteries. The remaining pressure point is cost per interception, which is why the Iron Beam laser has drawn U.S. funding.
Frequently asked questions
What is Iron Dome?
Iron Dome is an Israeli short-range air defense system that intercepts rockets, mortars, drones and some missiles at ranges of about 2.5 to 43 miles.
How does Iron Dome work?
Its radar tracks incoming threats, a battle management center predicts where they will land, and Tamir interceptors are fired only at threats heading toward the protected area.
Who makes Iron Dome?
Rafael Advanced Defense Systems developed it. RTX co-produces it in the United States.
How successful is Iron Dome?
Rafael claims more than 5,000 successful interceptions with a success rate of over 90%, as cited by the Congressional Research Service. The figure comes from the manufacturer.
How much has the U.S. paid for Iron Dome?
The Congressional Research Service says the U.S. has provided over $6 billion for batteries, interceptors, co-production and maintenance.
Does the U.S. Army use Iron Dome?
The Army bought two batteries, delivered in 2020, as an interim defense. They were leased back to Israel in 2023.
This article was written by Peter with AI assistance and checked against the sources linked. See our AI use disclosure.
Sources
- Congressional Research Service: U.S. Foreign Aid to Israel (RL33222)
- U.S. Army: Iron Dome live fire at White Sands Missile Range
