Ann-Sofie Dahl is a nonresident senior fellow at the Scowcroft Center for Strategy and Security’s Transatlantic Security Initiative.

She is an associate professor of international relations (Docent) and holds a PhD in international relations from Lund University in Sweden. In recent years, she has been an adjunct fellow at the Center for Strategic and International Studies in Washington, DC from 2001 to 2007 and 2010 to 2017, senior research fellow at the Center for Military Studies in Copenhagen from 2013 to 2016, and a visiting fellow at NATO Defense College in Rome in 2012. Prior to that she has been affiliated with a number of research institutions and universities in the United States, including Georgetown University and Princeton University, and in Scandinavia.

In addition to her research, Dahl also founded the Swedish Atlantic Council in 1996 and was its first secretary general and then vice president from 1996 to 2007. She was a vice president of the Atlantic Treaty Association from 2002 to 2005. She is also a co-founder of the Danish think tank CEPOS as well as a columnist and op-ed writer, with regular contributions to the Swedish and Danish press and national media.

Dahl has published extensively on Baltic Sea security, Nordic-Baltic security, NATO and its partners, and the transatlantic link. Her most recent book is NATO. Forsvar og Fællesskab i Forandring (2021) which is an updated translation to Danish from her 2019 book on NATO in Swedish, NATO. Historien om en försvarsallians i förändring. Her recent books and chapters in English include Strategic Challenges in the Baltic Sea Region: Russia, Deterrence and Reassurance (2018), “Sweden and Finland: To be or not to be NATO members,” NATO and Collective Defence in the 21st Century, An Assessment of the Warsaw Summit (2017), Northern Security and Global Politics: Nordic-Baltic Strategic Influence in a Post-Unipolar World (2013), and US Policy in the Nordic-Baltic Region: During the Cold War and after (2008). She also contributed a chapter on Sweden and Finland in the Atlantic Council report, edited by Robert Nurick and Magnus Nordenman, “Nordic-Baltic Security in the 21st Century: The Regional Agenda and the Global Role.”