Defense and Security
CSIS’s defense and security research is led by the Missile Defense Project; Project on Nuclear Issues; Defense-Industrial Initiatives Group; Aerospace Security Project; Warfare, Irregular Threats, and Terrorism Program; Burke Chair in Strategy; Smart Women, Smart Power; Defending Democratic Institutions Project; and Defense Budget Analysis.

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Argentina’s Realignment with the United States: Milei’s Reforms Gain Strategic Support
Commentary by Ariel González Levaggi and Claudio Robelo — April 30, 2025

Fewer Soldiers, More Drones: What Ukraine’s Military Will Look Like After the War
Commentary by Benjamin Jensen — April 28, 2025

Trump’s Deep-Sea Mining Executive Order: The Race for Critical Minerals Enters Uncharted Waters
Critical Questions by Gracelin Baskaran and Meredith Schwartz — April 25, 2025

Space Threat Assessment 2025
Report by Clayton Swope, Kari A. Bingen, Makena Young, and Kendra LaFave — April 25, 2025
Past Events

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Outlook for U.S.-Japan Relations: Perspectives from Japanese Legislators

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What is North Korea Learning from the Ukraine War? | The Capital Cable #111

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Report Launch: The Future of Arms Control and Euro-Atlantic Strategic Stability

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Whole of Society Resilience Lessons from Russia-Ukraine | Conflict in Focus

Photo: iLab/CSIS
After Impeachment: South Korean Presidential Election | The Capital Cable #110

Photo: iLab/CSIS
Space and Data Domain Lessons from Russia-Ukraine | Conflict in Focus

Photo: iLab/CSIS
The Impossible State Live Podcast: The Future of U.S.-ROK-Japan Trilateral Cooperation

The Impossible State Live Podcast: The Constitutional Court Decides Yoon's Fate
Related Programs

Defense Budget Analysis

Defense-Industrial Initiatives Group

Missile Defense Project

Project on Nuclear Issues

Civil-Military Relations

Aerospace Security Project

Risk and Foresight Group

Strategic Futures

Warfare, Irregular Threats, and Terrorism Program

Gray Zone Project

Cooperative Defense Project

Defense 360

Arleigh A. Burke Chair in Strategy

Smart Women, Smart Power

Defending Democratic Institutions

Hidden Reach
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All Defense and Security Content
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The Future of U.S.-Japan-ROK Trilateral Cooperation
Event — April 2, 2025
Drones and AI on the Ukrainian Battlefield
Podcast Episode by H. Andrew Schwartz and Kateryna Bondar — April 2, 2025

Threat Outlook and Implications for U.S. Strategic Forces
Event — April 1, 2025
How to Secure the Black Sea During a Russia-Ukrainian Ceasefire
Commentary by Benjamin Jensen and Mark Montgomery — March 31, 2025
Global Terrorism Threat Assessment 2025
Report by Alexander Palmer, Riley McCabe, Daniel Byman, and Skyeler Jackson — March 28, 2025
“Global Terrorism Threat Assessment 2025”: Audio Brief with Daniel Byman
Podcast Episode by Daniel Byman — March 28, 2025

What Happened at the Trump Administration’s Annual Threat Assessment Hearing?
Commentary by Emily Harding and Julia Dickson — March 27, 2025
Fighting with Allies: Transforming Multinational Strategic Planning in the U.S. Department of Defense
Report by Sean Monaghan, Alexander Palmer, and Chris H. Park — March 26, 2025
“Fighting with Allies: Transforming Multinational Strategic Planning in the U.S. Department of Defense”: Audio Brief with Sean Monaghan
Podcast Episode by Sean Monaghan — March 26, 2025

Building Critical Minerals Cooperation Between the United States and the Democratic Republic of the Congo
Brief by Gracelin Baskaran — March 25, 2025