International Security Program

The CSIS International Security Program (ISP) is a constant source of reliable analysis on the international security and defense landscape, particularly with growing competition between the United States and such countries as China, Russia, Iran, and North Korea

About Us

Learn more about the CSIS International Security Program, our goals, and our primary areas of research.

Meet Our Experts

Meet our network of experts, staff, and non-resident affiliates who contribute to our analysis.

Explore our Research

The CSIS International Security Program leads a rigorous analytic agenda covering the most pressing challenges facing the U.S. globally. Our research projects range from multi-year reports to short commentaries and opinion pieces on breaking news. Explore our various research projects here.

Contact

Alexis Day
Associate Director, Defense and Security Department
ADay@csis.org

Media Queries

Sofia Chavez
Media Relations Manager, External Relations
202.775.7317
SChavez@csis.org

Recent Analysis

Trump Moves “Nuclear” Subs: Negotiating Tactic or Escalatory Gamble?

Trump sent nuclear submarines closer to Russia following a week of social media clashes with the former Russian president, while his envoy heads to Moscow to broker a ceasefire before the deadline. Amid wild speculation, this commentary assesses the latest.

Critical Questions by Mark F. Cancian and Chris H. Park — August 6, 2025

Photo: James/Adobe Stock. Image was generated with AI.

High-Altitude Nuclear Explosions: Myths and Reality

Brief by Scott Pence and Adam F. Reynolds — July 14, 2025

Insights for Future Conflicts from the Russia-Ukraine War

Digital Report by Krista Auchenbach, Nathan Lewis, Scott Murphy, Quinton Packard, Scott Pence, Luke Slivinski, and Matthew Slusher — May 8, 2025

What Happened at the Trump Administration’s Annual Threat Assessment Hearing?

Commentary by Emily Harding and Julia Dickson — March 27, 2025

Securing Cyber and Space: How the United States Can Disrupt China’s Blockade Plans

Commentary by Benjamin Jensen, Erica Lonergan, and Kathleen McInnis — March 20, 2025

See all analysis by the International Security Program

Global Security Forum 2024

Gathering Strength in a Gathering Storm

Join the CSIS International Security Program for its annual Global Security Forum on April 24, 2024, featuring keynote discussions with General Charles Q. Brown, Jr., Chairman of the Joint Chiefs of Staff, and the Honorable Avril Haines, Director of National Intelligence.

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All International Security Program Content

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Smart Women, Smart Power Podcast

Countering China and Russia: The Hidden Advantages of Women, Peace, and Security

How can Women, Peace, and Security be leveraged to counter China and Russia? Dr. Kathleen McInnis discusses a new brief with Dr. Kyleanne Hunter and Monica S. Herrera.

Podcast Episode by Kathleen McInnis — November 20, 2024

Sea, Land, Air, and NC3: Modernizing the Whole Nuclear Enterprise

Please join the CSIS Aerospace Security Project and Project on Nuclear Issues for fireside and panel conversations on nuclear modernization modernization.

Event — November 19, 2024

Sea, Land, Air, and NC3: Modernizing the Whole Nuclear Enterprise

The CSIS Aerospace Security Project and Project on Nuclear Issues hosted fireside and panel conversations on nuclear modernization.

Transcript — November 19, 2024

Countering China and Russia: The Hidden Advantages of Women, Peace, and Security

How can Women, Peace, and Security (WPS) be better utilized to accomplish U.S. strategic objectives? On November15, join the Smart Women, Smart Power Initiative for a virtual launch of the brief: Countering China and Russia: The Hidden Advantages of Women, Peace, and Security.

Event — November 15, 2024

Readying the Navy’s Platforms: More Players on the Field - A Conversation with the Vice Chief of Naval Operations

CSIS and the U.S. Naval Institute are excited to host a Maritime Security Dialogue event featuring ADM James Kilby, Vice Chief of Naval Operations, on how the U.S. Navy is preparing its force for the future.

Event — November 14, 2024

Audio Briefs

“What Difference Does It Make?”: Audio Brief with Kathleen McInnis

A short, spoken-word summary from CSIS’s Kathleen McInnis on her report with Alexis Day, What Difference Does It Make?: A Report of the CSIS Smart Women, Smart Power Initiative.

Podcast Episode by Kathleen McInnis — November 14, 2024

Readying the Navy’s Platforms: More Players on the Field - A Conversation with the Vice Chief of Naval Operations

Admiral James W. Kilby, Vice Chief of Naval Operations, joined CSIS to discuss how the U.S. Navy is preparing its force for the future and how lessons learned from conflicts in the Middle East and Europe will alter future contingencies in the Indo-Pacific and other regions.

Transcript — November 14, 2024

Integrating Artificial Intelligence into the Next National Security Council

As the National Security Council readies for transition, it’s time to move from static reports to AI-driven insights, creating a smarter, faster policy engine to guide the United States' national security strategy in a rapidly evolving global landscape.

Commentary by Benjamin Jensen and Jose M. Macias III — November 13, 2024

The Global Terrorism Landscape with the Acting Director of the National Counterterrorism Center

Please join the CSIS Defense and Security Department on Tuesday, November 12th, from 3:00 p.m. to 4:00 p.m. EDT, for a virtual conversation with Brett M. Holmgren, acting Director of the National Counterterrorism Center.

Event — November 12, 2024

The Global Terrorism Landscape with the Acting Director of the National Counterterrorism Center

Brett Holmgren, Acting Director of the National Counterterrorism Center, joined the CSIS Defense and Security Department to discuss the evolving global terrorism landscape and U.S. counterterrorism efforts to safeguard American security.

Transcript — November 12, 2024

Meeting the U.S. Defense Imperative: Challenges and Opportunities in the Development of the Defense Industrial Base Workforce

IEEJ Energy Outlook 2026: Deepening Uncertainties Surrounding the Challenges of Energy Transition

Energy Leverage in the Russia-Ukraine War

Delivering Space Capabilities for Warfighting Advantage

International Security Program

About Us

Meet Our Experts

Explore our Research

Contact

Media Queries

Recent Analysis

Trump Moves “Nuclear” Subs: Negotiating Tactic or Escalatory Gamble?

High-Altitude Nuclear Explosions: Myths and Reality

Insights for Future Conflicts from the Russia-Ukraine War

What Happened at the Trump Administration’s Annual Threat Assessment Hearing?

Securing Cyber and Space: How the United States Can Disrupt China’s Blockade Plans

Global Security Forum 2024

Gathering Strength in a Gathering Storm

All International Security Program Content

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Countering China and Russia: The Hidden Advantages of Women, Peace, and Security

Sea, Land, Air, and NC3: Modernizing the Whole Nuclear Enterprise

Sea, Land, Air, and NC3: Modernizing the Whole Nuclear Enterprise

Countering China and Russia: The Hidden Advantages of Women, Peace, and Security

Readying the Navy’s Platforms: More Players on the Field - A Conversation with the Vice Chief of Naval Operations

“What Difference Does It Make?”: Audio Brief with Kathleen McInnis

Readying the Navy’s Platforms: More Players on the Field - A Conversation with the Vice Chief of Naval Operations

Integrating Artificial Intelligence into the Next National Security Council

The Global Terrorism Landscape with the Acting Director of the National Counterterrorism Center

The Global Terrorism Landscape with the Acting Director of the National Counterterrorism Center

Media Inquiries