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Strengthening National Security Resilience in Japan

Japan has many strengths that give it tremendous potential for resilience. However, further investments are required to bolster relatively undeveloped elements of national security resilience that China or another foe may seek to exploit.

Report by Daniel Byman, Nicholas Szechenyi, and Riley McCabe — December 18, 2025

Questions to Ask After a Terrorist Attack

Confusion reigns after a terrorist attack. Initial reporting is often flawed, and misperceptions endure even after being debunked by experts. Asking the right questions can help policymakers, journalists, and the public distinguish signal from noise, avoid costly overreaction, and prepare for future threats.

Commentary by Daniel Byman — December 16, 2025

Improving U.S. Cooperation with Allies and Partners

To make the most of its vast network of allies and partners, the United States must understand the barriers inhibiting U.S.-allied cooperation and devise ways to overcome them.

Report by Daniel Byman, Alexander Palmer, Audrey Aldisert, Henry H. Carroll, Cynthia R. Cook, Chris H. Park, and Seth G. Jones — October 14, 2025

Ideological Trends in U.S. Terrorism

The Warfare, Irregular Threats, and Terrorism Program examines the state of terrorism in the U.S., finding left-wing violence has risen in the last decade but from very low levels and still well below historic levels of violence by right-wing and jihadist actors.

Analysis by Daniel Byman and Riley McCabe — September 26, 2025

Will, Cohesion, Resilience, and the Wars of the Future

In both Ukraine and Israel, the story of resilience is not only about battlefield endurance but also the mobilization of society—military, civilian, technological, and psychological—to resist aggression and maintain national cohesion.

Commentary by Daniel Byman — September 16, 2025

The Evolution of Irregular Warfare

The wars in Ukraine and the Middle East have demonstrated that irregular warfare is a defining feature of contemporary conflict and a strategic domain in its own right. Ignoring it would be a grave miscalculation in an era of persistent geopolitical competition.

Commentary by Daniel Byman, Seth G. Jones, and Sofia Triana — September 16, 2025

The Wrong Way to Fight the Cartels: CSIS Experts in Foreign Affairs

Experts from the CSIS Americas Program and Warfare, Irregular Threats, and Terrorism Program argue in Foreign Affairs that President Trump’s approach to the cartels risks repeating the mistakes of the “War on Terror.”

Commentary by Ryan C. Berg, Daniel Byman, Iselin Brady, Riley McCabe, Alexander Palmer, and Henry Ziemer — September 15, 2025

How NATO Can Support the United States in Asia

NATO members can, and should, play an important role in the event of a crisis over Taiwan, in the Philippines, or other confrontations with China.

Commentary by Iselin Brady and Daniel Byman — June 23, 2025