Operation Scorch Sword

Overview

Operation Scorch Sword was an Iranian airstrike on Iraq's Tuwaitha Nuclear Research Centre in 1980. Conducted eight days after the beginning of the Iraqi invasion of Iran, it was a surprise attack against the under-construction Osirak nuclear reactor, which was located 17 kilometres to the southeast of Baghdad and was widely perceived as a major asset for the then-ongoing Iraqi nuclear program. At dawn on 30 September, four Iranian F-4 Phantom IIs completed an aerial refueling near the Iran–Iraq border before flying into Iraqi airspace, where they deliberately climbed to a high altitude in order to be detected by Iraqi radar systems, albeit on a false course. Moments later, two of them peeled off and dropped to an extremely low altitude to avoid further detection and subsequently changed course for the Iraqi nuclear facility.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Significance

Operation Scorch Sword was the opening Iranian counterstrike against Iraqi strategic infrastructure, launched just eight days after Iraq's invasion of Iran in September 1980. By targeting the Osirak nuclear reactor at Tuwaitha — then under construction and widely regarded as a central asset of Iraq's nuclear program — Iran signaled a willingness to strike deep into Iraqi territory and attack capabilities well beyond the immediate front lines. The operation demonstrated that Iran retained the capacity to project airpower against high-value targets near Baghdad in the earliest phase of the war, complicating Iraqi assumptions about the conflict's scope.

Tactics