On October 10, 2025, CSIS Defense and Security Department experts discussed Russian President Vladimir Putin's offer to abide by New START limitations for another year after the treaty expires in February 2026.
On September 24, 2025, CSIS Defense and Security Department experts discussed recent reform to the Missile Technology Control Regime (MTCR) and their implications for strategic competition.
The United States faces one of the most dangerous international security environments in recent history. While some aspects of warfare remain perennial, the conflicts in Ukraine and the Middle East are showing how others are rapidly evolving on the modern battlefield.
On September 3, 2025, CSIS Defense and Security Department experts unpacked the strategic implications of the Chinese capabilities showcased during their victory day parade.
On August 12, 2025, the CSIS Defense and Security Department hosted a conversation on a conversation on space-based nuclear threats and the future of space security.
On July 30, 2025, the CSIS Defense and Security Department hosted a conversation on developments in U.S.-UK strategic cooperation.
On July 21, the CSIS Missile Defense Project rolled out our new report, Mesh Sensing for Air and Missile Defense. As threats to missile defense assets increase, the study assesses a vision for passive, proliferated sensor networks for surface-based air and missile defense. Using historical case studies and computer simulation-based analysis, the report identifies new considerations for sustainment, mission planning, network design, and mobility when deploying proliferated sensor meshes on Earth.
On July 8, 2025, the CSIS Missile Defense Project hosted a conversation on recent U.S. Army air defense operations, including the largest-ever Patriot engagement following Iran's attack on Al Udeid Air Base.
On July 2, 2025, the Center for Strategic and International Studies (CSIS) and the Association of the U.S. Army (AUSA) will host a Strategic Landpower Dialogue event featuring Vice Chief of Staff of the U.S. Army General James Mingus. The discussion will explore Army force planning, readiness, and initiatives to build a modern, capable force.
On June 27, 2025, the CSIS Defense and Security Department hosted a conversation on the escalation risks and the implications for the future of Iran's nuclear program.
