25 Years After 9/11 — A Look Back
-
Explainer
Computational Statecraft: An Overview
From Emerging Technology, Scientific Advancement, and Global Policy
-
Reports & Papers
What the European Drone Defense Initiative Has to Get Right
From Defense, Emerging Technology, and Strategy
Belfer in the News
Our experts contribute to the news with critical, timely insight and perspective
-
In The News25 Years After 9/11 — A Look Back
-
-
-
In The NewsThe ‘Super-Terrorist’ We Still Can’t Escape
-
-
A Letter from Belfer Center Director Meghan O'Sullivan
Upcoming Events
See what's happening at Belfer
The Iran War
Since February 2026, the U.S. and Israel have been engaged in warfare with Iran, triggering a rapidly escalating regional conflict with profound consequences for global security, energy markets, & nuclear stability. Belfer Experts comment on the latest.
Explore the Collection: The Iran War
On Enriched Uranium and (Iranian) Nuclear Bombs
From Science, Technology, and Public Policy
Interest Areas
Our research spans a variety of key issues across the globe, at the nexus of science and international affairs
Celebrating International Security at Fifty Years
Fifty years ago, the founders of International Security hoped that its creation would help revitalize the academic study of international security.
Today, International Security is one of the most widely cited journals in the field of international relations. The contents of the journal constantly evolve in response to world events, new scholarly developments, and its contributors’ particular interests, but it remains a vital resource for scholars and students alike.
Middle East & North Africa
-
Reports & PapersWhither Hezbollah? A Reassessment of Identity, Crisis, and Survival on the Path to a Third Open Letter
From Intelligence Project
-
Reports & Papers
10 Chinese and Pakistani Nuclear Postures and Strategies
-
Reports & Papers
Egypt as a Middle Power: Short-Term Efficacy vs. Long-Term Fragility
Artificial Intelligence
-
ExplainerComputational Statecraft: An Overview
From Emerging Technology, Scientific Advancement, and Global Policy
Energy
-
Reports & PapersBits-to-Watts: Connecting Markets and Prices for Compute and Power
From Environment and Natural Resources
-
Policy Briefs
EU Tech Sovereignty Package Policy Brief
