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Home » John Mearsheimer: U.S. Already Lost Iran War – No Off-Ramp in Sight (Transcript)

John Mearsheimer: U.S. Already Lost Iran War – No Off-Ramp in Sight (Transcript)

Editor’s Notes: In this compelling discussion, Professor John Mearsheimer joins Glenn Diesen to examine the escalating conflict between the United States, Israel, and Iran, arguing that the U.S. has already effectively lost the war. Mearsheimer highlights the lack of a plausible “off-ramp” for the Trump administration and challenges the assumption of “escalation dominance,” noting that Iran possesses a formidable ability to retaliate against critical infrastructure in the Gulf States. The conversation also delves into the historical limitations of strategic air power, the role of intelligence support from Russia and China, and the catastrophic economic implications for Europe as the conflict intensifies. Ultimately, Mearsheimer provides a sobering critique of current U.S. strategy, suggesting that the refusal to acknowledge the reality of the situation on the ground is leading toward a humiliating strategic defeat. (Mar 11, 2026) 

TRANSCRIPT:

Introduction

GLENN DIESEN: Welcome back. We are joined by Professor John Mearsheimer to discuss the war against Iran, which is definitely not going as planned. So thank you very much for coming back on.

PROFESSOR JOHN MEARSHEIMER: My pleasure, Glenn.

The War Is Not Going as Planned

GLENN DIESEN: Well, as I said, the war definitely not going as Trump had hoped, but it seems to be going as many would have predicted. Indeed, Trump himself had been met with a lot of warnings before he went down this road, and now, of course, it’s unclear what direction he should take.

We also see reports from the American media that even Israel is now growing concerned. They don’t think that Iran is going to collapse. They don’t think it’s going to surrender. So what exactly, if time is on Iran’s side, why go down this road? And the Wall Street Journal said something similar, that Trump’s advisors would like to find a quick exit from this war. So what do you make of this? Is this reaching the end of the war, or will Iran not permit this?

PROFESSOR JOHN MEARSHEIMER: Well, it’s quite clear that the war is not going well for the United States and that President Trump, I think, would like to put an end to it. And the problem that he faces is he can’t find an off-ramp. I think nobody can tell a plausible story about how this war ends.

If we had decisively defeated Iran the way we decisively defeated both Nazi Germany and Imperial Japan in World War II, then you can say the war is over with. We are the winner, and we’re going to impose terms on the loser. But that’s not what’s happened here. They haven’t won anything approximating a decisive victory. And in a very important way, the Iranians have an incentive to continue the war, to turn it into a protracted war of attrition, and they have the means to do that.

So the question then is, how does President Trump get Iran to agree to settle this war? When you listen to people in the administration talk, they sometimes talk as if we’re the only player in the game. Of course, the Israelis as well, but the Americans and the Israelis are in the driver’s seat. We determined when the war started, we determined when it ends, we determine the conditions that the Iranians have to accept. This is the sort of view you get from inside the administration, but this is not the way the real world works. The Iranians have a say in this. And the question is, how do you get the Iranians to agree to stop fighting?

Now, some people might say that we are inflicting so much punishment on the Iranians that they would be happy to quit. Pete Hegseth has been saying that today is going to be the day of the heaviest bombardment that Israel and the United States inflict on Iran. Okay, let’s assume they inflict more punishment today than they have in any of the previous 11 days of the war. Does that mean that the Iranians are going to throw up their hands and quit? I hardly think that’s the case. I think that Iran has prepared itself to accept massive punishment by the United States and Israel. So we can dish it out, but the Iranians are not going to throw their hands up.

And in fact, what the Iranians are going to do is they’re going to up the ante from their side as we go up the escalation ladder. They’ll go up the escalation ladder. If you start destroying critical infrastructure inside of Iran, they’ll destroy critical infrastructure inside the Gulf States and inside of Israel. And they can do it. They have lots of ballistic missiles, they have lots of drones. Almost all of them are highly accurate. And they’re operating in a target-rich environment. It’s not like they can’t find targets to hit. They can hit vulnerable and important economic and strategic targets with relative ease.

So they have a strong hand to play. When I say they, I mean the Iranians have a strong hand to play. And they have no incentive to settle this one on America’s terms. They have a deep-seated interest in making sure they get something out of a settlement — sanctions relief, reparations, who knows? But they’re going to drive a hard bargain, because the more time goes by, the more desperate we are going to be to settle this one.

So all of this is to say I don’t see what the off-ramp is at this point in time for President Trump. I hope I’m wrong. I hope I’m missing something and the war can just be shut down. But nobody’s been able to tell me a plausible story as to how you bring this thing to an end anytime soon.

I would just say one final point, Glenn. I think if the effects on the international economy are significant, it looks like we’re heading off a cliff. And that is possible. I think at that point the Americans will bring the war to an end, but that will not be a victory.