How does Israel’s missile-defence system work – and how long will it be effective?

Late last week, Israel began a wave of attacks on Iran under the banner of Operation Rising Lion, with the stated goal of crippling the Islamic republic’s nuclear programme and long-range strike capabilities. At the outset, Israel claimed Iran would soon be able to build nine nuclear weapons, a situation Israel regarded as completely unacceptable.

Following Israeli strikes against Iranian nuclear facilities, and targeted assassinations of Iranian nuclear scientists and key members of the Iranian armed forces, Iran retaliated with a large barrage of ballistic missiles and drones against Tel Aviv and Jerusalem. The first wave consisted of some 200 ballistic missiles and 200 drones.

The conflict continues to escalate, with population centres increasingly being targeted. Israel’s missile defence systems (including the vaunted Iron Dome) have so far staved off most of Iran’s attacks, but the future is uncertain.

Ballistic missiles and how to stop them

Iran possesses a large arsenal of ballistic missiles and long-range drones, alongside other long-range weapons such as cruise missiles. Ballistic missiles travel on a largely fixed path steered by gravity, while cruise missiles can adjust their course as they fly.

Iran is approximately 1,000 km from Israel, so the current strikes mostly involve what are classified as medium-range ballistic missiles, alongside long-range drones. It is not clear exactly what type of...

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