Israel has inflicted unprecedented damage on Iran's elite - why now?

Benjamin Netanyahu has been making the argument that Israel faces existential threat if Iran gets a nuclear bomb for many years.

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That is not only to hit Iran's missile bases - and thus its ability to respond with force - but also to launch strikes to take out key members of Iran's leadership.

That strategy of decapitation of Hezbollah senior figures had devastating consequences for the group and its ability to mount a sustainable counter offensive.

Footage from Tehran has shown what seem to be specific buildings hit, similar to images from Israel's attacks on the southern suburbs of Beirut, which culminated in the killing of Hezbollah's leader, Hassan Nasrallah.

No figure of that magnitude appears to have been killed in Iran. The Supreme Leader Ali Khamenei has not been targeted.