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

In November 2025, the U.S.-China Economic and Security Review Commission released its annual report to Congress, highlighting Beijing’s pursuit of an ambitious and coordinated whole-of-government ...

Victory in Ukraine will prove elusive without finding ways to counter Russia’s use of illicit maritime trade to sustain its war economy. That is, Ukraine and its Western backers need to resurrect the ...

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.

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 ...

In advance of President Donald Trump’s upcoming visit to South Korea later this month—where he is expected to meet Chinese President Xi Jinping for the first time since 2019—China announced that it ...

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 ...