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Home » Col. Douglas Macgregor: America’s Attack on Iran Could Start WW3 (Transcript)

Col. Douglas Macgregor: America’s Attack on Iran Could Start WW3 (Transcript)

Read the full transcript of military analyst Col. Douglas Macgregor in conversation with Norwegian writer and political activist Prof. Glenn Diesen on “America’s Attack on Iran Could Start WW3”, June 21, 2025.

PROF. GLENN DIESEN: Hi, everyone, and welcome. Today we are joined by Colonel Douglas MacGregor, former advisor to the Secretary of Defense, to discuss the war against Iran. So welcome back to the program, Colonel.

COL. DOUGLAS MACGREGOR: Happy to be here.

The Current State of the Iran Conflict

PROF. GLENN DIESEN: So after this surprise attack on Iran, there was great optimism, not just in Tel Aviv, but Washington and I would also say some European capitals. Yet now the mood has shifted to a great extent and there’s a bit of a gloom among those who are cheering on this war. How severe do you think this is now? Is Iran winning?

COL. DOUGLAS MACGREGOR: Well, the war has just started. I don’t think people understand that. And I would not expect it to win anytime soon or end at anytime soon. I think people grossly overestimated the impact of the surprise attack on Iran in which we were ultimately complicit.

I think President Trump did what he could to create the illusion that we were interested in some sort of negotiated outcome and that helped to sort of disarm the Iranians, at least initially. They’ve surprised me with the rapidity that characterized their comeback, and their arsenal has now come into use.

I was talking to somebody else earlier today who was tracking the numbers of ballistic missiles, medium range ballistic missiles with a 12 to 1400 kilometer range that had been used. And of course, they have over 3,000 of these and only a fraction have been used thus far.

So I think Israel is in for a long war, whether it wants it or not, and we are about to join it because I think President Trump’s announcement that he was going to take the next two weeks to think about it is nonsense. I think the decision has been made. In fact, I have sources on the inside telling me that it’s been made.

What’s taking time is to assemble the air and naval forces that have to launch the attacks. You remember a few months ago, we had enormous numbers of naval and air assets in the region. Ultimately, we withdrew them and it takes time to reassemble them. Once they’re assembled, we will attack.

Military Preparations and Trump’s Strategy

PROF. GLENN DIESEN: So Trump’s announcement that he will still think for another two weeks, this is just the required preparation to get the strike group in place.

COL. DOUGLAS MACGREGOR: I think he was told by the Secretary of defense, look, we’re not going to be able to act quickly. It’s going to take us a few days to get it together. And so he said, well, that’s fine because, you know, Donald Trump loves to play with the media. There is nobody certainly in my lifetime who’s been better at manipulating the media than Donald Trump. And so this gives him an opportunity to do that.

But in reality, the decision to attack has been made and the forces are still assembling. Remember, a lot of ships had to be replenished. In other words, they need to be reloaded with food, water, as well as munitions and missiles. And then you had to bring in carrier battle groups to replenish and also replace forces that were already in the region.

Now you have huge numbers of aircraft that are being moved into nearby installations so that they can fly. And I think we have in the neighborhood of 30 to 40 refueling assets for air refueling. So once it’s all in place, they will attack.

The Challenge of a War of Attrition

PROF. GLENN DIESEN: But you say this war will go on for a while, but to what extent is that possible? Because in a war of attrition, one has to be able to replenish its ammunition and everything else. But it looks as if Israel is already struggling with its interceptive missiles. The Iron Dome appear to be less powerful or convincing than it has been sold to the public. Not that I’m contesting that it would be a long war, but to what extent would America be able to perform differently than Israel? I know America has greater firepower, but it’s also to a large extent, more exposed in the region, isn’t it?

COL. DOUGLAS MACGREGOR: Well, you’re coming to an important point. You have Israel, which is on the ropes, let’s be frank. They’ve seen a substantial portion of their country destroyed. They’re not going to admit it, but I think that Netanyahu has been pleading with Trump to get into the game quickly. You’ve got to come in. We’re running out.

We had many, many large aircraft globemasters that landed within the last 24 hours to try and provide theater. High altitude interceptors, missiles, as well as Patriots and others. We have troops on the ground in Israel that are helping to man the radars and the THAAD batteries. So this is a very difficult situation.

And Israel has always been at the end of a short tether when it came to warfare. In 73, we had to fly in enormous amounts of equipment in order to replace the losses and help the Israelis to get back on their feet. But at that point, they were the victims of an attack. This time they victimized Iran.

Iran: A Different Kind of Adversary

And Iran is different from the other states that they’ve faced. Iran is a large continental power. The United States is preeminently an air and maritime power. We are not going to commit large ground forces. We don’t have them to commit. And Iran is almost the size of Western Europe. Put France, Germany together, part of Spain and northern Italy, and you have Iran that’s an enormous area. You don’t mobilize forces and move into a place like that quickly.