Gregory D. Johnsen is a non-resident fellow at the Arab Gulf States Institute. He has been a Peace Corps volunteer in Jordan, a Fulbright Fellow in Yemen, and a Fulbright-Hays Fellow in Egypt. In 2013-14 he was selected as BuzzFeed’s inaugural Michael Hastings National Security Reporting Fellow where he won a Dirksen Award from the National Press Foundation and, in collaboration with Radiolab, a Peabody Award. He has a PhD from Princeton University and master’s degrees from Princeton and the University of Arizona. Johnsen is the author of The Last Refuge: Yemen, Al-Qaeda, and America’s War in Arabia (W.W. Norton), which has been translated into multiple languages. From 2016-18 he served on the Yemen Panel of Experts for the United Nations Security Council. In 2019, he served as the lead writer for the United States Institute of Peace’s Syria Study Group. His writing on Yemen and terrorism has appeared in, among others, The New York Times, The Atlantic, and Foreign Policy.
Analysis
A Path to a Stronger United States in the Gulf
AGSI offers pragmatic, targeted policy recommendations for the Trump administration to maximize U.S. political and economic influence with the crucial emerging regional powers in the Gulf.
20 min read

The Yemen Deal
Both the United States and the Houthis needed a deal for different reasons. But the deal won’t create any sort of lasting or sustainable framework for peace in the Red Sea.

7 min read

Betting Big in Yemen
For the Houthis, this is an existential fight. But the United States has a harder path to success.

6 min read

Yemen’s Weakest Link: The Presidential Leadership Council
To eliminate the Houthis' capabilities, the United States will need the support of Yemen's Presidential Leadership Council, a body plagued by infighting and incompetence.

7 min read

The Coming War in Yemen
Trump’s executive order redesignating the Houthis a foreign terrorist organization threatens direct military action against the Houthis, raising the possibility that the United States could get sucked into another long-term conflict in the Middle East.

6 min read

Great Power Competition in the Red Sea
For the United States, the Houthi threat in the Red Sea should be treated as part of strategic competition instead of merely a local or regional challenge.

6 min read

Events
Assessing the U.S. Military Response to the Houthis: Implications for Yemen and Red Sea Security
On May 20, AGSI hosted a discussion on the United States' policy toward the Houthis.

Mar 12, 2024
The Houthi Challenge to Maritime Security
On March 12, AGSIW hosted a discussion on the Houthi challenge to maritime security in the Red Sea and the Gulf of Aden.

Is the End in Sight for the Yemen Conflict?
On October 26, AGSIW hosted a discussion on the prospects for the end of the conflict in Yemen.

Can a New U.N. Envoy Produce Peace in Yemen?
On July 15, AGSIW hosted a discussion on the top issues and challenges facing the incoming United Nations special envoy for Yemen.

With Renewed Efforts To End the War, What are the Prospects for Peace in Yemen?
On Wednesday April 28, AGSIW hosted a discussion on efforts to end the conflict in Yemen.

Engagement
May 17, 2025
The New York Times: Gregory D. Johnsen commented on how cutting aid to Yemen risks empowering the Houthis.
The New York Times: Gregory D. Johnsen commented on how cutting aid to Yemen risks empowering the Houthis.
The New York Times