Renewing the Transatlantic Alliance for a New Security Era

A dialogue between the US and its European allies on how to refresh the transatlantic security relationship in response to a shifting international environment.




The transatlantic relationship has been a defining element of European security for over 70 years, and a key part of the wider international order. However, the relationship is under growing strain from global security shifts, diverging political views, and polarised debates within the US and Europe about core interests and geographical priorities.

Against this background, RUSI has launched this project to promote a dialogue between the US and its European allies on how the transatlantic relationship can be renewed to meet shared challenges.

The project is being run in partnership with the Center for New American Security (CNAS) in Washington DC.

This project is sponsored by the Carnegie Corporation of New York

Aims and objectives

With the rapid deterioration of international security – inter alia Russia’s war in Ukraine, growing conflict in the Middle East, and rising tensions in the Indo-Pacific region – there is an urgent need to update the Transatlantic security alliance to respond effectively to the shifting international security environment, and notably the rise of a group of states (Russia, China, Iran, and North Korea) hostile to the alliance.

This project aims to promote a dialogue between the incoming US Administration and other parts of the US foreign and security policy system (including the US Congress) and European countries on the best ways to rebalance and update the alliance to enable the allies to meet and overcome the new challenges that they collectively face. The project will build a Transatlantic dialogue involving policy makers and experts to share perspectives and threat assessments, build better mutual understanding of core interests, and to promote discussion on developing a roadmap to renew the relationship reflecting the enduring commitment to its core principals and values but the need to address burden sharing, resource commitments, and new ways of working together.

Project outputs

The project outputs will consist of a series of dialogue workshops and private dinner discussions in London, Washington DC, Brussels and in other European capitals conducted over two years until 2026, as well as convening a US forum on European security in the second year of the project.

We will also produce related podcast episodes and publish a series of policy briefs.