The recently announced “Trump” class of battleships is cast as the world’s largest and most powerful ships. But these ships ...

The 2025 National Security Strategy recasts naval power as an economic and industrial instrument, pushing the Navy toward ...

On the Horizon Volume 8 features research from the 2025 CSIS PONI Nuclear Scholars Initiative. The chapters explore how advances in technology and geopolitical shifts affect nuclear deterrence and ...

The CSIS Missile Defense Project is pleased to roll out its new brief, The Depleting Missile Defense Interceptor Inventory.

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

Tehran is experiencing an unprecedented water crisis. Satellite imagery analysis shows that key reservoirs that feed the capital are far below their typical seasonal variation. The Iranian president ...

Tomahawk missiles have emerged as the key discussion topic surrounding Ukrainian President Volodymyr Zelensky’s third visit to the White House today. U.S. President Donald Trump has floated the idea ...

The United States is overseeing a seismic reordering of defense priorities and assets to the Western Hemisphere. At the time of this writing, four destroyers, one cruiser, one nuclear-powered attack ...

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 ...

On September 4, several new documents revealed the next steps for the trade deal that the United States and Japan first announced on July 22. In the initial framework agreement, Tokyo promised ...

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 ...