Security
& Strategy

Defense Policy & Posture

Projects

Studying the use of military force as an instrument of foreign policy, diplomacy, and coercion

Prioritizing military readiness and sustainability to craft common sense defense policy

A comprehensive assessment of the benefits and costs of military action from operational, strategic, and political perspectives.

US-Japan Alliance

Improving U.S. and Japanese policymakers’ understanding of shared security and political challenges as both countries face new regional dynamics

War in the 21st Century

Exploring the changing character of war and its implications for US foreign and defense policy

Recent Publications

Commentary

Five Things to Know About Iranian Minelaying

Iran’s mining of the Strait of Hormuz turns cheap, asymmetric weapons into strategic leverage against the U.S. Navy

Kelly A. Grieco • Marie-Louise Westermann

Commentary

Trump and Takaichi Set Out a Shared Future Vision in Washington

Joint US-Japan cooperation on military shipbuilding and repair at Pearl Harbor could send a powerful signal while boosting strength and prosperity

Hiroshi Ito • Andrew Oros

Commentary

Iran Isn’t ‘Flailing’ — It’s Executing a Coercive Risk Strategy

Understanding Iran’s military strategy in response to Operation Epic Fury

Kelly A. Grieco

Issue Brief

Runway Trap: How Chinese Missiles and Rockets Could Neutralize Taiwan’s Air Force

Chinese missiles and artillery could ground Taiwan’s F-16s for weeks. Resilient, mobile defenses are essential to contest the skies

Kelly A. Grieco • Hunter Slingbaum

Video

Assessing the 2026 NDS: How does it deal with defense deficits?

Dan discusses the National Defense Strategy with Defense Priorities Director of Military Analysis Jennifer Kavanagh

Dan Grazier

Op-Ed

Spending More on the Military is not a Defense Strategy

The Trump administration’s executive order to curb industry stock buybacks has no teeth, but U.S. lawmakers could and should take advantage

Julia Gledhill • Dan Grazier

Op-Ed

Congress should walk Trump’s talk on arms industry stock buybacks

The Trump administration’s executive order to curb industry stock buybacks has no teeth, but U.S. lawmakers could and should take advantage

Julia Gledhill

Op-Ed

The US military is feeling invincible, and that’s dangerous

What happened in Venezuela is the exception, not the rule

Dan Grazier • Benjamin N. Gedan

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Experts

Julia Gledhill

Research Analyst

Dan Grazier

Senior Fellow and Director

Kelly A. Grieco

Senior Fellow

Christopher Preble

Senior Fellow and Director, Reimagining U.S. Grand Strategy Program

James Siebens

Fellow

Jimmy Wang

Nonresident Fellow

Geoff Wilson

Distinguished Fellow and Strategic Advisor

Events

Past
Event

The Realities of an Invasion of Taiwan

Online or In-Person

Past
Event

Gambling on Armageddon: Costs and Risks of Nuclear Modernization

Online Only

Past
Event

U.S.-Japan Alliance in 2025: Toward a Deeper Alliance

Online or In-Person

Past
Event

Security and Sovereignty: Exploring Canada’s Vision for Land Power with Lieutenant-General M.C. Wright, Commander of the Canadian Army

Online or In-Person

Cancelled
Event

Designing the 21st Century Air Force: A Conversation with Vice Chief of Staff of the US Air Force, Gen. Jim Slife

Online or In-Person

Past
Event

Trump and Ishiba Meet for the First Time—What Comes Next?

Online Only

Past
Event

In Competition, Crisis, and Conflict: Building America’s Warfighting Navy with CNO Lisa Franchetti

Online or In-Person

Past
Event

Ground Forces and Great Powers: A Conversation with U.S. Army Secretary Christine Wormuth

Online or In-Person

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