On CBS's Face the Nation Sunday, former Defense Secretary Leon Panetta insisted that the only way to make the air strikes against ISIS effective is to have soldiers on the ground.

Panetta complimented President Obama's current strategy, but cautioned that the U.S. will have to have a lot of patience to carry it out. However, the former Secretary of Defense said that air strikes alone will work against ISIS only "to a degree," and said that specific information is still needed to accurately pinpoint targets to be completely successful:

This is a strategy that is going to demand a lot of patience. I think the president is taking the right steps. We've got troops to try to help the Iraqis get their act together in terms of their security force. We're conducting these air strikes. We're trying to train and arm the rebels in Syria. We've built a coalition force -- but all of this requires great leadership on the part of the United States. We're going to have to keep this together and have to be very patient. We're going to have to be very determined. These air strikes can help to a degree. I think they've helped kind of stifle some of the momentum, in ISIS but to make these air strikes work, you've got to have information on targets and you've got to be able to pinpoint where the enemy is located, and that is something, frankly, that is going to take time.

Hearing what Panetta was implying, host Bob Schieffer helped pull out the phrase the Obama administration is so afraid of, "boots on the ground." Panetta said yes, ground soldiers are needed, but they don't have to be American:

You've got to have boots on the ground -- doesn't have to be American boots on the ground -- but you've got to have people on the ground who can identify targets and who can help us develop the kind of effective air strikes that are going to be needed if we're going to be able to undermine, destroy this vicious enemy that we're dealing with.