We are entering our thirteenth day of the war in Iran, and we’ve been getting conflicting signals about how long it might last and what the end goal actually is.

At the start, it seemed the goal was regime change. President Trump called on Iran’s forces to lay down their arms and for civilians to revolt, saying the operation could last four to five weeks.

Since then, Trump has also called for Iran’s unconditional surrender, and Secretary of State Marco Rubio framed the goal of the conflict as destroying Iran’s ballistic missile capabilities, missile production factories, and navy.

On Monday, Trump said the war was ahead of schedule and “very complete, pretty much.” The same day, the Department of War said, “we have only just begun to fight.” On Tuesday, Democratic senators emerged from a briefing telling the press they were concerned about the likelihood of the U.S. putting boots in the ground in Iran.

Meanwhile, the economic repercussions of the conflict and the near closure of the Strait of Hormuz, have rippled across the globe, amping up the stakes of the war.

To borrow an analogy from a friend of the podcast, there is an awful lot of noise surrounding the operation. Today we are going to try to find the signal. Where do things stand? What are the upside and downside risks? And what are the possible outcomes?

Joining me to do that is Mara Karlin, professor at the Johns Hopkins School of Advanced International Studies. She served in national security roles for six U.S. secretaries of defense and most recently served as Assistant Secretary of Defense for Strategy, Plans, and Capabilities under President Biden.

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