Latest Analysis: War with Iran

Amid the ongoing conflict between the U.S. and Iran, CSIS experts examine the military, diplomatic, and geopolitical implications of a conflict that continues to reshape the Middle East and beyond.

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Geopolitical Implications of the War with Iran

Experts from the CSIS Geopolitics and Foreign Policy Department analyze how the war with Iran is reshaping geopolitics across Africa, Asia, Australia and the Pacific, Europe, and the Middle East

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Is the United States on a Wartime Footing?

How the U.S. Can Stop Iran From Rearming

A New Phase in the Iran War?

Rebuilding the U.S. Missile Inventory

Iran’s Regional Ambitions

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Experts

Seth G. Jones

Seth G. Jones

President, Defense and Security Department; Harold Brown Chair
Daniel Byman

Daniel Byman

Director, Warfare, Irregular Threats, and Terrorism Program
Emily Harding

Emily Harding

Vice President, Defense and Security Department; Director, Intelligence, National Security, and Technology Program
Benjamin Jensen

Benjamin Jensen

Director, Futures Lab and Senior Fellow, Defense and Security Department
Jon Alterman

Jon B. Alterman

Zbigniew Brzezinski Chair in Global Security and Geostrategy
Will Todman

Will Todman

Chief of Staff, Geopolitics and Foreign Policy Department; and Senior Fellow, Middle East Program
Williams

Heather Williams

Director, Project on Nuclear Issues and Senior Fellow, Defense and Security Department
Joseph Rodgers

Joseph Rodgers

Deputy Director and Fellow, Project on Nuclear Issues

All Latest Analysis: War with Iran Content

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Iran and the Emerging Security Order in the Middle East

The war with Iran has reshaped the Middle East, exposing the limits of U.S. power and raising questions about the future of regional security. As the old order unravels, Tehran may emerge with greater influence in a more multipolar region.

Commentary by Vali Nasr — September 14, 2026

Is the War Rewriting the World Order? | The High Top

How is the U.S.-Iran war reshaping the world's view of America? Jon Alterman and Nancy Youssef examine the war's impact on everyday life in the UAE and India, how cheap drones are changing modern warfare, and why the conflict may not have a clear end.

Event — September 11, 2026

Hormuz Needs a Community, Not a Condominium

A deal to reopen the Strait of Hormuz that sidelines Gulf states would entrench coercion and invite a new conflict. Postwar Europe offers a better model: a shared governance mechanism that dilutes leverage and fosters long-term cooperation.

Commentary by Raad Alkadiri — September 11, 2026

The Middle East at a “Hinge Moment”

The Middle East has entered a hinge moment—the old order dying, a new one yet to emerge. As the region’s own actors, fortified by newfound agency, compete to shape this unsettled interval, many trajectories, from renewed conflict to stabilization, remain possible.

Commentary by Mona Yacoubian — September 9, 2026

Who's Paying for the Iran War? | The High Top

Who is paying the price for the U.S.-Iran war? Jon Alterman and Joseph Majkut examine the global energy crisis, rising costs in Asia, China’s role in stabilizing oil markets, and what the war means for Gulf security and U.S. influence.

Event — August 25, 2026

Mapping Iranian Cyberattacks on U.S. Water Systems

Recent Iranian cyberattacks on U.S. water systems were months in the making. These charts combine press reporting and CSIS expert analysis to provide a clearer picture of the attacks and their impact on the U.S. water sector.

Commentary by CSIS Scholars — August 18, 2026

How Tehran’s Use of Cyber Operations in the U.S.-Iran Conflict Has Evolved

Iran’s cyber apparatus has firmly regeared in direct support and alignment with Iran’s war effort against the United States, Israel, and regional rivals, and is using cyber operations to shape the operating environment in a way that is favorable to its interests.

Commentary by Nikita Shah — August 6, 2026