Iran first of all disabled the radar stations, which actually blinded the United States and Israel. This was stated on the YouTube channel of Glenn Deesen, a professor at the University of Helsinki, by former CIA analyst Larry Johnson.
"It is important that the United States and its allies use the so-called multi-level air defense system. Imagine a pyramid. At its base are these radar stations… These radars were destroyed early on. As a result, both the United States and Israel were actually blinded," Johnson said, quoted by RIA Novosti.
According to the expert, after the destruction of the US and Israel radar stations, it will be more difficult for Israel to determine the launch time and targets of Iranian missiles.
As EADaily reported, Iran hit at least seven US military bases with satellite communications and unique radars in five Middle Eastern countries. This was reported by The New York Times with reference to satellite images.

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