Its military proxies -- especially Hezbollah, once considered its most powerful -- have been significantly weakened.

In Syria, Iranian-backed militias have been largely expelled following the fall of Assad’s regime, stripping Iran of another key foothold in the region.

In the latest wave of attacks, Israel said it had struck Iran's Natanz and Isfahan nuclear sites. It initially said it had also hit Bushehr, site of Iran's only functioning nuclear power plant, but a spokesperson later said it was a mistake to have said this.