The withdrawal came with unusual speed, following what U.S. officials said were threats of an Iran-based plot against the installation.

Perry World House (PWH) – the University of Pennsylvania’s hub for global affairs – is pleased to announce its 2026-27 cohort of distinguished visiting fellows. Over the course of the year, these scho...

In September '23, UAE President bin Zayed called Netanyahu to deliver a harsh warning. Netanyahu did nothing. An extensive investigation, conducted for a new book, reveals the PM's failures surroundin...

New intelligence reports have assessed that Iran now has a far better understanding of its capabilities and the limits of U.S. power.

Enduring Hostility: The Making of America's Iran Policy

How this war ends is as uncertain as the reasons for starting it.

The Trump administration risks a clash with Beijing as it tries to cut off Iran’s economic lifelines without upending a fragile U.S.-China truce.

Published in The Washington Quarterly (Vol. 45, No. 1, 2022)

The path to a post-American regional order.

Cyber warfare is conducted secretly and anonymously, unless one of the sides in the confrontation has an interest in exposing it. The attacks are generally launched without claiming responsibility or ...

While a nuclear-armed Iran that hasn't been attacked is dangerous, one that has been attacked may be much more likely to brandish its capabilities, to make sure it does not face an attack again, write...

The Joint Chiefs of Staff chairman has said that a lack of munitions and allied support could mean greater danger for U.S. troops, people familiar with the talks say.

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

America’s recent use of missile interceptors has left supplies low. An Iranian counterattack would deepen the dent. The U.S. is now trying to restock.