‘Operation Days of Repentance’ – How Israel’s strike on Iran unfolded

Israel’s pre-dawn attack on Iran was one of the biggest and most complex air assaults the country has ever conducted.

Dozens of aircraft, including Western-made fifth-generation F-35 stealth jets as well as F-16 and F-15 warplanes, flew more than 1,000 miles to strike multiple targets inside Iran, including the regime’s prized, Russian-provided S-300 air defence systems.

An Israeli source said four of the S-300 systems were hit along with radars and other air defence capabilities, reducing the risk to Israeli aircraft should they be deployed on any future mission against the Iranian regime.

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The raid – codenamed “Operation Days of Repentance” – also targeted sites where Iran was manufacturing missiles used to threaten Israel.

“It was a significant attack… We were able to achieve all the goals,” the source said.

The Israeli government had vowed to retaliate after Iran launched more than 180 ballistic missiles at Israel on 1 October in response to Israeli attacks against Iranian interests.

Israeli air defences, supported by the US military, intercepted between 85-90% of the projectiles, according to the Israeli source.

However, a number of the 1,000-ton warheads did impact on Israeli targets.

“It is a threat that we cannot accept,” the source said.

Long anticipated, Israel’s weekend retaliation came in three waves, with the first strike hitting at about 2am on 26 October and the last Israeli jet safety returning to Israel by 6am.

No aircraft were lost or damaged in the mission.

In what was described as a “complex” operation, Israeli fighter jets, supported by air-to-air refuelling aircraft and reconnaissance planes, left their bases before midnight on 25 October.

They had to fly more than 1,000 miles to be within range of their targets – a journey that would have required the warplanes to refuel en route and fly over hostile airspace.

The aircraft were armed with so-called “stand-off munitions” – missiles that can be launched from a distance, meaning they did not need to enter Iranian air space to achieve their goal.

‘Picked off with impunity’

Israel has not publicly acknowledged the route for its operation.

However, it is thought the Israeli Air Force, including 201 Squadron, which operates F-16s, flew over Syria and then into Iraq, firing their weapons from Iraqi airspace, before returning home.

The Iraqi government on Monday made a formal complaint to the United Nations, accusing Israel of a “blatant violation” by using its airspace to attack Iran.

Open-source reporting indicates that Israel then hit targets in around 20 locations across Iran, including close to Tehran and in the west of the country.

The choice of targets is key.

The Israel Defence Forces (IDF) said its aircraft went after missile manufacturing sites as well as Iranian air defence capabilities – including the S-300 systems, manufactured by Russia.

Analysts said Israel’s ability to strike these air defence systems, with the help of Western technology such as the F-35 jet, would be causing alarm in Tehran because it undermines Russian claims that they provide an effective defensive shield against airstrikes.

“It shows that even top-end Russian air defence systems can be picked off almost with impunity, which must worry those countries whose capitals are protected by these systems,” said Air Marshal Edward Stringer, a former senior Royal Air Force officer and fighter pilot.

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Russia provided the S-300 system to Iran. It has also recently supplied the upgraded S-400 system. These are the most capable air defence systems that the Iranian military operates.

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Iran has downplayed the impact of the weekend strikes, but the Israeli military has said the mission was a success.

Degrading Iranian air defences will reduce the threat to Israeli jets on any future attack, while targeting Iranian missile manufacturing capabilities is intended to reduce the ability for the Islamic Revolutionary Guard Corps to strike back against Israel.

Potential future targets in Iran

“We were not just attacking to do something symbolic,” the source said.

“It was very much practical.”

As for how Israel expects Iran to respond, it is not yet clear whether even Tehran has decided what to do.

“We are monitoring the situation and waiting to see how it develops,” the Israeli source said.

“We achieved what we wanted to achieve. We did our retaliation. Now the ball is in the Iranian court. We are ready for any case.”