Senior Iranian and Hezbollah commanders were likely planning a sophisticated invasion of Israel’s northern border in the weeks before they were killed by an Israeli airstrike over the weekend, according to Major General Eyal Ben Reuven, the former deputy head of the Israeli Defense Forces Northern Command.

The accuracy of Israel’s strike and the high-level nature of those Iranian and Hezbollah commanders killed indicates planning for a militant incursion into Israel’s northern region, according to Reuven, who said the airstrike shows a “very high level of intelligence” on Israel’s part.

The high-level nature of the Iranian and Hezbollah operatives targeted by Israel suggests that an attack on Israel was imminent, according to Reuven, who handled top intelligence in the region during his time serving in the IDF.

“If the highest level of Hezbollah commanders were in the Golan Heights and the high level of Iranians, it means that their idea, [what] they’re planning could be a kind of operation, an act against Israel on a high level,” Reuven said during a conference call Monday organized by the Israel Project (TIP). “It’s significant, the high level of this meeting, of this reconnaissance of the Iranians and Hezbollah.”