NATO

NATO has been the cornerstone of transatlantic security, uniting 32 democracies across North America and Europe. Originally established to deter Soviet aggression, the alliance now defends its members against conventional threats and engages in peacekeeping and crisis management amid a dramatically altered security landscape—most notably shaped by Russia’s war against Ukraine. CSIS analysis explores how NATO successfully maintains close cooperation with partner nations worldwide and how the strategy of the alliance can evolve to reflect changing geopolitical norms in its principles, operations, and efficacy.

Photo: PETER KOHALMI/AFP/Getty Images

Photo: PETER KOHALMI/AFP/Getty Images

What Happens After Hungary’s Election? Four Scenarios to Watch

Hungary’s election could mark a democratic turning point—or trigger a crisis: concession, gray zone tactics, or outright contestation. This analysis outlines four scenarios and the stakes for Hungary and Europe.

Commentary by Donatienne Ruy — April 3, 2026

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Max Bergmann

Max Bergmann

Director, Europe, Russia, and Eurasia Program and Stuart Center
Seth G. Jones

Seth G. Jones

President, Defense and Security Department; Harold Brown Chair
Benjamin Jensen

Benjamin Jensen

Director, Futures Lab and Senior Fellow, Defense and Security Department
Jerry McGinn

Jerry McGinn

Director, Center for the Industrial Base and Senior Fellow, Defense and Security Department
Yasir Atalan

Yasir Atalan

Deputy Director and Data Fellow, Futures Lab, Defense and Security Department

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What Is at Stake in Hungary’s Election?

Hungary’s April election could end Viktor Orbán’s 16-year rule as opposition leader Peter Magyar mounts a serious challenge. The outcome will shape Hungary’s democratic trajectory and impact the European Union’s unity and policy for years to come.

Critical Questions by Donatienne Ruy and Maria Snegovaya — March 11, 2026

Northwood Declaration: The Future of European Deterrence?

The Northwood Declaration marks a major evolution in Franco British nuclear cooperation, signaling a stronger European pillar of deterrence while reinforcing NATO cohesion. Translating its ambitions into concrete policy, capability, and operational steps will shape Europe’s security future.

Commentary by Astrid Chevreuil and Jonathan Burchell — February 27, 2026

How Could Europe Respond to Future U.S. Threats to Greenland?

If the Trump administration returns to using threats of economic coercion to pressure Europeans over the territorial status of Greenland, the European Union has a range of economic tools at its disposal to respond.

Commentary by Federico Steinberg, Emily Benson, and Nicholas Fenton — January 22, 2026

Transatlantic Relations Under Trump: An Uneasy Peace

President Trump’s transactional stance and skepticism toward Europe has shocked transatlantic ties linking trade, security, and Ukraine. Europe has been cautious, but looming fights over defense, tech, and trade could rupture the relationship.

Commentary by Max Bergmann — October 6, 2025