The state of the transatlantic security partnership

Date
September 17, 2026, 9:00 AM to 9:45 AM EDT
Virtual Event
Nicolas Véron (PIIE) and Oana Lungescu (Royal United Services Institute)
Event Summary

The policies and pronouncements of the second Trump administration have, to say the least, created strain in the transatlantic relationship, affecting the United States, its allies in the North Atlantic Treaty Organization (NATO), and the European Union. In parallel to unprecedented trade, investment, and regulatory developments, the security aspects of the relationship have been put into sharp relief by Russia's continued war in Ukraine and increasingly aggressive actions against other European countries.

Is the damage reparable, and if so, under what conditions? How does the current strain affect relations within NATO, and between the European Union, the United Kingdom, and other European countries? How do the current challenges compare with past episodes of the 80-year-old transatlantic security partnership?

HOST

Nicolas Véron
Senior Fellow, Peterson Institute for International Economics (PIIE)

GUEST

Oana Lungescu 
Distinguished Fellow, Royal United Services Institute (RUSI)

Video

Series

About This Series

Europe faces a turbulent new era of economic, security, and governance challenges. Join Nicolas Véron, senior fellow at the Peterson Institute for International Economics, for What Now, Europe?, a virtual series and podcast with experts and practitioners diving into Europe's future in a changing world.

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