A lot of assets were still moving into theater, dependents hadn't been evacuated from
Naval Support Activity Bahrain and other facilities that were within an easy chip shot of Iranian Fateh launchers across the Gulf, and the attacks were launched in broad daylight... this was obviously something launched on the fly rather than a preplanned zero hour.
Via Matthew Ford, author of
War in the Smartphone Age and other books, the Israelis had, in addition to having
hacked one of the most popular apps in Iran, gotten intel that Khamenei and other high-ranking Iranian government officials would be meeting in a specific place at a specific time, so that's why the snap launch of a decapitation strike.
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