In 1981, eight Israeli fighter jets crossed hostile airspace undetected on a mission many considered impossible. No warning and no invasion: in about 100 seconds, the Osirak nuclear reactor was destroyed, triggering a diplomatic storm. The attack was condemned internationally, although some military and political figures later privately acknowledged its strategic impact. Had the reactor survived, the region’s history might have unfolded differently.

(Staff: Israel & Iraq / History & Geopolitics)

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Some moments in history are measured not in years but in seconds. A decision made at the highest level and executed with extraordinary precision, despite the rules and expectations of international diplomacy, can change the fate of an entire region. One such moment took place over the Iraqi desert on 7 June 1981.

History books often mention this episode only briefly, despite the intense geopolitical struggle behind it. It was Operation Opera.

The threat from Osirak

In the late 1970s, Saddam Hussein’s regime was consolidating its power. Baghdad pursued an ambitious nuclear programme centred on the Osirak research reactor, also known as Tammuz 1, purchased from France. Although officially intended for peaceful research, Israeli and Western intelligence agencies suspected it could help produce plutonium for nuclear weapons.

For Israel, a nuclear-armed Iraq was considered an existential threat. After diplomatic efforts to halt the project failed, the Israeli government decided that if the international community would not act, Israel would act itself.

The 100-second flight

Planning took more than a year. Baghdad was over 1,600 kilometres away, beyond the practical range of the aircraft without aerial refuelling. The route also crossed hostile territory, including Jordan and Saudi Arabia, while the pilots sought to avoid radar detection.

On 7 June 1981 at 15:55 local time, eight F-16s escorted by six F-15s took off. They flew at very low altitude to reduce the risk of detection. At 17:35, they reached the Osirak complex.

In roughly 100 seconds, the aircraft released 16 guided bombs. The first wave breached the reactor dome so the second could strike the core. The complex was left in smoking ruins, and all eight F-16s returned safely to Israel.

Condemnation and the reality behind the scenes

The international response was swift. The UN Security Council unanimously adopted Resolution 487, condemning the attack as a flagrant violation of the UN Charter and calling on Israel not to repeat it. The United States, Israel’s principal ally, also joined the official condemnation.

Privately, some assessments were more favourable. Years later, some US officials and military leaders described the destruction of the reactor as a major strategic success. Saddam Hussein later tried to rebuild the nuclear programme in secret, but the strike destroyed key infrastructure and delayed the project.

Conclusion

The bombing of Osirak remains one of the most controversial examples of a preventive strike in modern history. It raised difficult questions about sovereignty, international law and morality: was it illegal aggression or necessary self-defence against a perceived existential threat?

The attack left a lasting mark on Israel’s security doctrine: it would not allow a hostile regional state to acquire nuclear weapons. For the pilots who flew low over the desert, the decisive moments unfolded in those 100 seconds.