Israel’s historic strike on Iran revealed years of Mossad activity inside the country, including hidden weapons, drones and assassinations of nuclear officials.

The pre-emptive Israeli strike that reportedly killed nine of Iran’s lead nuclear scientists Friday isn’t the first time Tel Aviv has successfully targeted Tehran’s top experts. Israel launched large-scale airstrikes against Iran on Friday,

Israel’s Mossad spy agency released footage of their covert operations, including targeted drone strikes in Iran, in response to Iran’s nuclear development.

Iran’s attorney general warned citizens that anyone who collaborated with Israel in its attacks on the country would face severe punishment. Israel’s spy agency, Mossad, [spent months preparing](

Former Mossad counterterrorism head Oded Aliam discusses the impact of Iran’s missile attacks on Israel on ‘The Will Cain Show.’

To veteran journalist and author Dan Raviv, it’s an unprecedented glimpse into the secretive agency — with a clear message to Israelis.

Israeli spies infiltrated the heart of Iran before Friday morning’s Operation Rising Lion airstrikes and damaged the country’s missile infrastructure and air defenses in a series of covert operations.

"This confrontation will not end with last night's limited actions and Iran's strikes will continue, and this action will be very painful and regrettable for the aggressors," Fars reported, citing senior military officials.