International Security Program

The CSIS International Security Program (ISP) is a constant source of reliable analysis on the international security and defense landscape, particularly with growing competition between the United States and such countries as China, Russia, Iran, and North Korea

About Us

Learn more about the CSIS International Security Program, our goals, and our primary areas of research.

ISP About Us

Meet Our Experts

Meet our network of experts, staff, and non-resident affiliates who contribute to our analysis.

Seth G. Jones

Explore our Research

The CSIS International Security Program leads a rigorous analytic agenda covering the most pressing challenges facing the U.S. globally. Our research projects range from multi-year reports to short commentaries and opinion pieces on breaking news. Explore our various research projects here.

Photo: Alex Wong/Getty Images

Photo: Alex Wong/Getty Images

ISP Newsletter


  • Alexis Day
  • Program Manager and Research Associate, Smart Women, Smart Power Initiative and Outreach Manager, International Security Program.

Media Queries

On-Demand Event

Recent Analysis

Photo: Contributor/Getty Images

Photo: Contributor/Getty Images

Russian Nuclear Calibration in the War in Ukraine

How have Russia’s nuclear narratives evolved over the course of the war in Ukraine? To address this question and evaluate future nuclear risks, the CSIS Project on Nuclear Issues conducted a study on Russian nuclear signaling during the first 18 months of the war.

Brief by Heather Williams, Kelsey Hartigan, Lachlan MacKenzie, and Reja Younis — February 23, 2024