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.

Photo: Kayla Bartkowski/Getty Images
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

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

Unpacking Trump’s New Critical Minerals Executive Order
Critical Questions by Gracelin Baskaran and Meredith Schwartz — March 21, 2025
Past Events

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

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

Defense Industrial Base Lessons from Russia-Ukraine | Conflict in Focus

Photo: Paula Bronstein/Getty Images
War in Ukraine and Lessons for Asia | The Capital Cable #108

Europe's Nuclear Future

Photo: CSIS
Human Domain Lessons from Russia-Ukraine | Conflict in Focus

The Impossible State Live Podcast: When Will the Korean Impeachment Crisis End?

Book Launch: Critical Minerals and the Future of the U.S. Economy
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
Experts






All Defense and Security Content
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Report Launch: The Future of Arms Control and Euro-Atlantic Strategic Stability
Event — April 25, 2025
AI Diffusion and Defense Production
Event — April 2, 2025
The Future of U.S.-Japan-ROK Trilateral Cooperation
Event — April 2, 2025
Chinese Advances in Space Weaponization
Event — April 1, 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
Russia's Shadow War Against the West
Podcast Episode by H. Andrew Schwartz and Seth G. Jones — March 21, 2025

Unpacking Trump’s New Critical Minerals Executive Order
Critical Questions by Gracelin Baskaran and Meredith Schwartz — March 21, 2025