Please join the CSIS Defense and Security Department for a conversation on the recently released National Security Strategy.

The CSIS Missile Defense Project is pleased to roll out its new brief, The Depleting Missile Defense Interceptor Inventory. As missiles have become weapons of choice, air and missile defenses (AMD) ...

This National Security Strategy (NSS) marks an ideological and substantive shift in U.S. foreign policy. The administration is attempting to define a new “America First” foreign policy doctrine that ...

CSIS Charts is produced by the Center for Strategic and International Studies (CSIS), a private, tax-exempt institution focusing on international public policy issues. Its research is nonpartisan and ...

One year after the release of historic national security and defense strategies, Japan is moving with striking speed to build a more credible Self-Defense Force (SDF), capable of responding rapidly to ...

Editor’s Note: This piece was updated on October 23, 2025, to reflect that China further increased the tariff to 45 percent in April 2025. A previous version of this piece stated that China raised ...

With the war in Ukraine and a potential reduction of U.S. military presence in Europe on the horizon, there is a renewed imperative for European leaders to strengthen and integrate their defense ...

China’s economy is at a transformational moment. For more than two decades, a growth model centered on the debt-fueled construction of housing and infrastructure propelled the country’s rapid ...

In the immediate aftermath of the U.S. strikes on Iran’s nuclear facilities on June 22, “Operation Midnight Hammer,” policymakers and experts launched into a heated debate not only about the physical ...

The administration’s latest announcement on military aid for Ukraine gives a moderate but useful “bump” to weapons delivery for the next eleven months. President Trump and NATO Secretary General Mark ...

Under the Trump administration, military aid to Ukraine has been on and off, then partially on, then on again, and then increased further. That's where the policy lies as of Tuesday, July 15. Yet, ...

Major General Fran Mahon retired from the U.S. Army after 34 years of service and is an independent consultant in the aerospace and defense arena. A career air and missile defense officer, he has ...