Israel stunned Iran last week with a precision military operation years in the making; the Mossad and the military have worked together for at least three years to lay the operational ground, say sources; it used latest AI models to analyse intelligence, a tactic earlier deployed in Gaza and Lebanon.

Israel stunned and hobbled Iran last week when it pulled off an intelligence and military operation years in the making that struck high-level targets with precision.

Guided by spies and artificial intelligence, the Israeli military unleashed a nighttime fusillade of warplanes and armed drones smuggled into Iran to quickly incapacitate many of its air defences and missile systems. With greater freedom to fly over Iran, Israel bombarded key nuclear sites and killed top generals and scientists. By the time Iran mustered a response hours later, its ability to retaliate — already weakened by past Israeli strikes — was greatly diminished.

This account is based on conversations with 10 current and former Israeli intelligence and military officials, some of whom spoke on condition of anonymity to discuss clandestine operations.

The former head of research at Israel’s spy agency, the Mossad, confirmed the basic contours of the attack, saying she had inside knowledge of how it was planned and executed.

“This attack is the culmination of years of work by the Mossad to target Iran’s nuclear program,” said Sima Shine, the former Mossad research director who is now an analyst at the Institute for National Security Studies.

Israel’s element of surprise was enhanced by Iranian officials’ apparent assumption that Israel wouldn’t attack while talks over its rapidly advancing nuclear programme were ongoing with the U.S.

Talks in Oman

A sixth round of talks had been planned for last Sunday in Oman, but Israeli Prime Minister Benjamin Netanyahu activated “Operation Rising Lion” on Friday – after his country first notified President Donald Trump.

Mr. Netanyahu has for years said neutralising Iran’s nuclear programme was vital for Israel’s security, and Israel had previously taken steps to set back Iran’s ability to enrich uranium to weapons grade. But Mr. Netanyahu said a more aggressive attack proved necessary, as Iran kept advancing its enrichment programme despite U.S. diplomatic efforts and warnings from U.N. watchdogs.

Iranian Supreme Leader Ayatollah Ali Khameini has repeatedly called for Israel’s destruction. Iran’s political leaders say their nuclear programme is for peaceful purposes, though it was the only country without the bomb to enrich uranium close to weapons-grade levels. The Mossad and the military worked together for at least three years to lay the operational groundwork, according to a former intelligence officer who said he had knowledge of the attack.

The attack built off knowledge Israel gained during a wave of air strikes last October, which “highlighted the weakness of Iranian air defences,” said Naysan Rafati, an Iran analyst at the International Crisis Group.

To further diminish Iranian air defences and missile systems at the start of last week’s attack, Mossad agents had smuggled precision weapons into Iran that were prepositioned to strike from close range, according to two current security officials who spoke on condition of anonymity. Those weapons included small, armed drones, which agents snuck into the country in vehicles, according to the former intelligence officer.

Mossad agents stationed weapons close to Iranian surface-to-air missile sites, Shine said. The agency works with a mix of people, both locals and Israelis, she said.

To analyse information gathered from various sources, Israel used the latest artificial-intelligence, or AI, technology, said an intelligence officer involved with selecting individuals and sites to target. He said AI was used to help Israelis quickly sift through troves of data they had obtained.

That effort began last October according to the officer; it was one month before Mr. Netanyahu said he had ordered the attack plans.

Usage of AI models

An investigation by The Associated Press earlier this year uncovered that the Israeli military uses U.S.-made AI models in war to sift through intelligence and intercept communications to learn the movements of its enemies. It’s been used in the wars with Hamas in Gaza and with Hezbollah in Lebanon.

The intelligence officer involved in identifying the possible targets said options were first put into various groups, such as leadership, military, civilian and infrastructure. Targets were chosen if they were determined to be a threat to Israel, such as being deeply associated with Iran’s Revolutionary Guard — a paramilitary force that controls Iran’s ballistic missiles.

The officer was tasked with putting together a list of Iranian generals, including details on where they worked and spent their free time.

Among the high-level military officials killed since Friday’s attack were Gen. Hossein Salami, the head of Iran’s Revolutionary Guard, and Gen. Mohammed Bagheri, the chief of staff of Iran’s armed forces.

In addition to AI, the Mossad relied on spies to identify top nuclear scientists and members of Iran’s Revolutionary Guard, according to one security official. At least eight members of the Guard, including the head of its missile programme, were killed in a single Israeli strike on an underground bunker.

Another facet of the attack was to strike Iranian vehicles used to transport and launch missiles.

Israel’s blistering attack last week on the heart of Iran’s nuclear and military structure didn’t come out of nowhere, said retired Israeli Brig. Gen. Amir Avivi, who heads the Israel Defense and Security Forum think tank.

It was the result of “Israeli intelligence working extensively for years in Iran,” he said.

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