Affordable mass has become the watchword of defense modernization, be it swarms of drones or satellite constellations. What could such an approach mean for air and missile defense? Networks of passive ...

The CSIS Missile Defense Project is pleased to rollout our new report, Mesh Sensing for Air and Missile Defense.

CSIS mourns the loss of our Chief Communications Officer, Andrew Schwartz. For 20 years, he led with vision and integrity, shaping how CSIS engaged the world. His leadership, mentorship, and legacy in ...

The Napoleonic staff model is holding the U.S. back from innovating decisionmaking. To prevail in the era of agentic warfare, the U.S. requires smarter, faster command structures including Networked, ...

Russia has performed poorly on the battlefield in Ukraine and will likely hit the 1 million casualty mark in the summer of 2025. New CSIS data details Russia's slow rate of advance, heavy losses of ...

Terrorism remains a threat to U.S. citizens, assets, and interests despite the national security community’s decreasing focus on counterterrorism.

The United States leads in AI, but staying ahead requires scaling compute, energy, and capital. This commentary previews new Energy Security and Climate Change research on AI infrastructure, domestic ...

The Trump-Zelensky meeting ended disastrously, with the future of U.S. aid in doubt. Yet, Ukraine needs a steady flow of weapons, munitions, and supplies to continue its resistance, and Zelensky has ...

As the United States races to reduce its reliance on China for minerals vital for national, economic, and energy security, tariffs with Canada may drastically undermine these efforts. Canada is the ...

President Trump's deployment of troops to the southern border raises questions about its unprecedented scale and whether it signifies a policy shift or continuity.

Following Iran’s ballistic missile attack on Israel on October 1, defense analysts have expressed concerns about the U.S. use of about a dozen Standard Missile-3 (SM-3) interceptors. The debates ...

The United States once had big aspirations for the government of Xiomara Castro in Honduras. Elected on an anti-corruption platform and promising change, the Biden administration hoped for the ...