About

The Transatlantic Security Initiative’s mission is to contribute to a strong and resilient transatlantic relationship that is prepared to deter and defend, succeed in strategic competition, and harness emerging capabilities to address future threats and opportunities. This mission endures across changing political dynamics on both sides of the Atlantic and in the face of new and evolving threats.

TSI advances the interests and values of the United States and its transatlantic allies and partners through the Atlantic Council’s convening power, our cutting-edge research and substantive expertise, and through our extensive and influential network across the transatlantic community. We work in partnership with governments, the private sector, think tank community, academia and others. We hold expert public and private convenings, conduct research, organize study trips, and produce publications, commentary and analysis to shape and influence policy and debate on the biggest challenges facing the transatlantic relationship. Intellectual independence is a cornerstone of our work at all times.

Our pillars

NATO programming

Featured projects

Upcoming and Recent Events

Expert commentary & analysis

In-depth research & reports

Stay connected

Our team

Experts

Explore the program

The Scowcroft Center for Strategy and Security works to develop sustainable, nonpartisan strategies to address the most important security challenges facing the United States and the world.

Content

New Atlanticist

May 2, 2025

The Trump-Meloni challenge: How to make both the US and the West great again

By Ira Straus

American Greatness has multiple levels, and understanding how each operates is important to making the most of US power and influence.

Italy
Politics & Diplomacy

Insights & Impact

May 2, 2025

Irdi featured in Jamestown Perspectives on modern political warfare

By Beniamino Irdi

On May 2, Transatlantic Security Initiative nonresident senior fellow Beniamino Irdi was featured in Jamestown Perspectives discussing modern political warfare, how new technologies and authoritarian states effect vulnerabilities in democracies, and on countering hybrid warfare campaigns.

Europe & Eurasia

New Atlanticist

Apr 24, 2025

Dispatch from Vilnius: A NATO ally in Russia’s shadow won’t let history repeat itself

By James Hursch

The United States is urging its allies to strengthen their own defenses. To ensure it is never again dominated by Moscow, Lithuania is doing just that.

Defense Industry
Defense Policy

Uncategorized

Apr 14, 2025

Deni in Foreign Policy on changing US force posture in Europe

By John R. Deni

On April 14, Transatlantic Security Initiative nonresident senior fellow John Deni was published in Foreign Policy discussing force posture changes in Europe and how to navigate US interests.   

In the News

Apr 8, 2025

Braw published in Foreign Policy on America’s rare earth policy concerning Ukraine

By Elisabeth Braw

On April 8, Transatlantic Security Initiative senior fellow Elisabeth Braw was published by Foreign Policy in an article arguing that the US should recycle it’s own critical minerals instead of crafting an exploitative deal for taking minerals in Ukraine.

Issue Brief

Mar 31, 2025

Why NATO’s Defence Planning Process will transform the Alliance for decades to come

By Angus Lapsley and Pierre Vandier

NATO’s successes over the last seventy-six years are the result of constant adaptation, and the Alliance is now going through its most profound changes since the end of the Cold War.

Europe & Eurasia
International Organizations

New Atlanticist

Mar 25, 2025

Peace requires more than a handshake: Misreading Russia’s war aims will prolong Putin’s aggression

By Zak Schneider

Understanding Russian President Vladimir Putin’s ideological motivations for invading Ukraine is essential to negotiating a lasting peace.

Conflict
Defense Policy

Fast Thinking

Mar 18, 2025

The real meaning of Putin’s 30-day ‘energy cease-fire’ in Ukraine

By Atlantic Council

Our experts analyze the proposed limited cease-fire that would temporarily halt attacks on energy infrastructure between Russia and Ukraine.

Conflict
Crisis Management

Fast Thinking

Mar 14, 2025

What game is Putin playing in the cease-fire talks?

By Atlantic Council

Our experts parse the Kremlin’s official reaction to the United States’ proposal for a cease-fire in Ukraine.

Conflict
Crisis Management

New Atlanticist

Mar 13, 2025

NATO’s capability development: A call for urgent reform

By David Julazadeh

NATO must make major reforms to streamline its capability development process if the Alliance is to keep up with the pace of modern warfare.

Defense Industry
Defense Policy