Geopolitics and International Security

The International Security Program, the Arleigh A. Burke Chair in Strategy, the Zbigniew Brzezinski Chair in Global Security and Geostrategy, and regional programs analyze the threats and opportunities shaping global security.

Photo: Michael Kohler/CSIS

Photo: Michael Kohler/CSIS

Observations on the War in Ukraine: Impressions from Our Visit

Authors Daniel Byman and Elizabeth Hoffman offer five key takeaways from their recent trip to wartime Ukraine. They explore how Ukrainians are enduring the ongoing war, their perspectives on the future, and what remains to be done.

Commentary by Daniel Byman and Elizabeth Hoffman — September 13, 2024

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Jon B. Alterman

Jon B. Alterman

Senior Vice President, Zbigniew Brzezinski Chair in Global Security and Geostrategy, and Director, Middle East Program
Seth G. Jones

Seth G. Jones

Senior Vice President; Harold Brown Chair; and Director, International Security Program
Emily Harding

Emily Harding

Director, Intelligence, National Security, and Technology Program and Deputy Director, International Security Program
Clayton Swope

Clayton Swope

Deputy Director, Aerospace Security Project and Senior Fellow, International Security Program
Max Bergmann

Max Bergmann

Director, Europe, Russia, and Eurasia Program and Stuart Center
Victor Cha

Victor Cha

Senior Vice President for Asia and Korea Chair
Joseph Rodgers

Joseph Rodgers

Deputy Director and Fellow, Project on Nuclear Issues

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Observations on the War in Ukraine: Impressions from Our Visit

Authors Daniel Byman and Elizabeth Hoffman offer five key takeaways from their recent trip to wartime Ukraine. They explore how Ukrainians are enduring the ongoing war, their perspectives on the future, and what remains to be done.

Commentary by Daniel Byman and Elizabeth Hoffman — September 13, 2024

Houthi Aggression and a Roadmap for Peace in Yemen

The CSIS Middle East Program hosted a conversation with Maged Al-Madhaji, chair and co-founder of the Sana’a Center for Strategic Studies, on the Houthis’ strategy attacking shipping, military responses, and a way forward to end the war in Yemen.

Transcript — September 4, 2024

How China Could Blockade Taiwan

China has options other than invasion to try to force Taiwan’s unification, one of which is a blockade. This report explores the potential motivations and strategic calculus for a blockade and maps out possible scenarios of how China could approach blockade operations.

Digital Report by Bonny Lin, Brian Hart, Matthew P. Funaiole, Truly Tinsley, and Samantha Lu — August 22, 2024

A New Nuclear Age?

As the United States enters a "new nuclear age," the Pentagon’s approach is based on three assumptions: coordinated adversarial behavior, limited nuclear employment, and the failure of arms control. Despite some evidence, none should be considered forgone conclusions.

Commentary by Reja Younis — August 20, 2024

Building a Mutually Complementary Supply Chain between Japan and the United States

Japan’s recent increases in defense spending and relaxation of defense export rules have prompted a new era of opportunity in defense industrial cooperation with the United States, specifically in the realm of uncrewed aerial systems and electro-optical sensors.

Report by Christopher B. Johnstone, Cynthia Cook, Audrey Aldisert, Leah Klaas, Christine Michienzi, Gregg Rubinstein, Gregory Sanders, and Nicholas Szechenyi — August 15, 2024

Why Iran Will Escalate

Iran has limited options to respond to the killing of Hamas political leader Ismail Haniyeh, making escalation likely, even if Tehran prefers a return to the status quo.

Commentary by Alexander Palmer — August 8, 2024