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All in-depth research & reports

Issue Brief

Apr 5, 2024

Accelerating transatlantic defense innovation in an era of strategic competition

By John T. Watts

NATO’s warfighting edge will not be sufficient for the transatlantic community to weather today’s military and geopolitical realities.

Defense Technologies NATO

Issue Brief

Feb 21, 2024

NATO multidomain operations: Near- and medium-term priority initiatives

By Franklin D. Kramer, Ann Marie Dailey, Joslyn Brodfuehrer

How can NATO improve its ability to fight as a multination coalition? These seven initiatives for NATO to take over the next five years can help.

Defense Policy Defense Technologies

Issue Brief

Jan 11, 2024

Russia’s growing dark fleet: Risks for the global maritime order

By Elisabeth Braw

Russia’s dark fleet poses a significant threat to maritime security, forming the basis of Moscow’s grayzone aggression against Western institutions.

Europe & Eurasia Maritime Security

Issue Brief

Dec 22, 2023

Navigating Sweden’s NATO membership: Insights for political and operational adaptation

By Viltaute Zarembaite, Christopher Skaluba, Ann Marie Dailey

Sweden is on the cusp of joining Finland as NATO’s newest members, bridging a crucial gap in the region’s security architecture and creating new opportunities for closer security cooperation. Once Sweden is in NATO, the Baltic Sea will be a geographically coherent strategic space—or, in more casual parlance, a “NATO lake.”

Europe & Eurasia NATO


Dec 15, 2023

A security strategy for the Black Sea

By Atlantic Council Task Force on Black Sea Security

This report outlines the strategic setting, regional challenges and threats, key planning assumptions, risk and risk mitigation, and finally DIME (diplomatic, informational, military, and economic) based recommendations for enhancing security and stability in the Black Sea region.

Europe & Eurasia NATO


Oct 26, 2023

Continued US and allied integration is essential to deter Russian CBRN use

By Natasha Lander Finch, Ryan Arick, Christopher Skaluba

This report presents the findings and recommendations of the Atlantic Council project Conceptualizing Integrated Deterrence to Address Russian Chemical, Biological, Radiological, and Nuclear (CBRN) Escalation. The objective of this project was to develop an approach for incorporating European allies and partners into the US model of integrated deterrence against Russian CBRN use.

Arms Control Defense Policy

Issue Brief

Sep 6, 2023

Alternative security futures in the High North

By David Auerswald

Climate change, combined with increasing geopolitical competition and hostilities, has focused renewed attention on national security interests in the Arctic. By 2035, how will those variables combine to influence the High North?

China Climate Change & Climate Action

Issue Brief

Jul 10, 2023

We don’t really know which NATO allies are pulling their weight. Here’s how to fix that.

By John R. Deni

As NATO allies gather in Vilnius, there will be much discussion about burden-sharing and who’s living up to the 2014 Defense Investment Pledge. But exclusive statistical analysis by John R. Deni shows that spending more on defense doesn’t necessarily add up to contributing more to NATO missions.

Europe & Eurasia National Security


Jun 15, 2023

US-China lessons from Ukraine: Fueling more dangerous Taiwan tensions

By John K. Culver, Sarah Kirchberger

The lessons that Washington and Beijing appear to be learning from Russia’s war against Ukraine could set the stage for a crisis over Taiwan in the next few years.

China Defense Industry

Issue Brief

May 23, 2023

Providing long-term security for Ukraine: NATO membership and other security options

By Hans Binnendijk, Franklin D. Kramer

This issue brief evaluates membership and other security options for the alliance and its members to consider with regards to Ukraine, from formal actions by NATO as a whole to collective or individualized efforts by member nations.

Europe & Eurasia NATO