In an interview with NPR that was released on Saturday, Kissinger said “I consider Iran a bigger problem than ISIS. ISIS is a group of adventurers with a very aggressive ideology. But they have to conquer more and more territory before they can became a strategic, permanent reality. I think a conflict with ISIS — important as it is — is more manageable than a confrontation with Iran.”

The Kissinger interview comes just a day after some media reported that the Iranian regime’s Supreme Leader had ordered his military to cooperate with the U.S. in the fight against ISIS forces.

The State Department said Friday it was not coordinating military action or sharing intelligence with the Iranian regime, despite report claiming Khamenei had authorized working with United States.