Please join the CSIS Defense and Security Department for a conversation on nuclear weapons in space.

Max and Maria spoke with Harley Balzer and Sergei Guriev about the recently released volume, Failure. Russia Under Putin.

Operation Midnight Hammer struck Iran's key nuclear sites at Fordow, Natanz, and Isfahan using B-2s and Tomahawk cruise missiles. This effort aimed to destroy Iran’s uranium enrichment facilities, but ...

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 ...

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 ...

Newly proposed tariffs threaten to derail the United States’ clean energy sector’s recent boom, jeopardizing progress, and grid reliability while failing to expand domestic clean tech manufacturing ...

Introduction On April 2, 2025—a date President Trump proclaimed “Liberation Day”—the administration announced the most sweeping tariff hike since the Smoot-Hawley Tariff Act, the 1930 law best ...

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

Since January 2025, a series of attacks have targeted Tesla facilities and vehicles across the United States, bringing renewed attention to a long-standing debate among policymakers, scholars, and law ...

China is leveraging its globally dominant commercial shipbuilding industry to support its naval modernization—and foreign companies are inadvertently helping. This report outlines how the United ...

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 ...

Anniversaries, even those as somber as today’s, offer a crucial opportunity for reflection. As we mark the third anniversary of Russia’s full-scale invasion of Ukraine, it is essential to assess how ...