Douglas Hengel is a visiting senior fellow contributing to GMF’s work on global energy, climate, and resource challenges, with a particular focus on European energy security.  He is also an adjunct faculty member at Johns Hopkins School of Advanced International Studies in Washington, DC.

 As a former U.S. foreign service officer, Hengel served with the U.S. Department of State for more than 35 years.  Among his postings, he was deputy chief of mission in Rome and in Bratislava, and also served at the U.S. embassies in the Czech Republic, Peru, and Venezuela. In Washington, Hengel worked as deputy assistant secretary of state for energy, sanctions and commodities from 2007 to 2010, where his responsibilities included formulating and advancing U.S. international energy security policy, including relations with the International Energy Agency (IEA) in Paris. Hengel chaired the Standing Committee on Long-Term Cooperation at the IEA and also worked extensively on Iran sanctions.

Hengel has a bachelor's from Colgate University and a master's in public policy from the Woodrow Wilson School at Princeton University.  

Kristine Berzina is the Washington, DC-based managing director of GMF Geostrategy North. She is responsible for leading programming on US, Nordic, Baltic, and Arctic security and defense issues, and provides analysis on NATO and US and European foreign policy.

Berzina also leads GMF’s Across America initiative, which takes European officials into the US heartland to build regional connections on security issues. She is a frequent commentator in international media, including The New York Times, the BBC, CNN, NPR, France 24, Deutsche Welle, and The New Yorker. She is a co-host of Drošinātājs (The Fuse), a Ukraine-focused podcast and Latvian radio program.

Berzina previously worked on countering autocratic influence as head of GMF’s Alliance for Securing Democracy’s geopolitics team and, while based in Brussels and Berlin for the organization, on transatlantic security and energy issues. She holds a bachelor’s degree in political science and history from Yale University and a master’s degree in international relations from the University of Cambridge.

Peter Chase joined GMF’s Brussels office in September 2010 as a non-resident fellow and became a resident senior fellow in May 2016. His work focuses on the transatlantic economy with particular attention to trade and investment, digital and energy policies, and the EU’s economic relations with third countries.

Chase served as the U.S. Chamber of Commerce vice president for Europe from 2010-16; prior to this he was a U.S. diplomat with postings as minister-counselor for economic affairs in the U.S. Mission to the European Union, director of the State Department's office of EU affairs, chief of staff to the under secretary of economic affairs, and counselor and minister-counselor for economic affairs in the U.S. Embassy in London. 

Martin Quencez is managing director of geopolitical risk and strategy. Over the past ten years, he has held several positions at GMF, including as deputy director of the Paris office and research fellow in the Security and Defense program. His work includes research on transatlantic security and defense cooperation, and US and French foreign policy, on which he regularly writes for international media. He is a co-author of GMF’s annual flagship Transatlantic Trends report. 

Quencez is also an associate researcher for the European Council on Foreign Relations, working in France for its European Powers program. He has taught transatlantic relations at the Euro-American campus of Sciences Po and, prior to joining GMF, worked for the Institute of Defense Studies and Analyses in New Delhi, focusing on French and Indian strategic thinking. 

Quencez studied international relations at the Uppsala University and is a graduate of Sciences Po. He is completing a PhD in contemporary history at Sorbonne Nouvelle University. 

Dario Cristiani is a resident senior fellow at the German Marshall Fund of the United States, based in Washington, D.C., working on Italian foreign policy, the Mediterranean, and global politics. A native of Naples, Italy, he has more than fifteen years of experience as a private political risk consultant, working on Mediterranean and emerging markets. He received his Ph.D. in Middle East and Mediterranean studies from King’s College London in 2015, and he got a BA and MA (with distinctions) from the University of Naples L’Orientale, where he also started his academic career as a teaching and e-learning assistant in political science and comparative politics. He has been the director of executive training in global risk analysis and crisis management and an adjunct professor in international affairs and conflict studies at Vesalius College in Brussels. He continues teaching as a guest lecturer in several institutions in Europe and the Maghreb (Koninklijke Militaire School, Istituto Alti Studi Difesa, Sit Tunis). He has lived in Tunisia, Turkey, Belgium, and the United Kingdom.

Roger Svensson is a former Visiting Senior Fellow at GMF.

Markus Ziener is a professor of journalism at the Hochschule für Medien, Kommunikation und Wirtschaft (HMKW), University of Applied Sciences, in Berlin. He teaches political theories and economics, mass media, journalistic writing, and the history of the press. He is also the global affairs correspondent of the newspaper The Straits Times in Singapore and a regular contributor to the Neue Zürcher Zeitung and Deutschlandfunk/Deutschlandradio. Ziener is also a liaison lecturer at the Heinrich-Böll-Stiftung.

Between 2006 and 2012 Markus Ziener was Washington bureau chief of Handelsblatt, Germany's business daily. Prior to that he worked as a field reporter, covering the wars in Afghanistan and Iraq. He has also served as Handelsblatt’s correspondent in Moscow (1994–1999) and Eastern Europe (1990–1994). From 1999 to 2001 he was foreign editor with the Financial Times Deutschland.

Originally from Darmstadt, Ziener obtained his Ph.D. in politics at the Humboldt-Universität zu Berlin, examining financial crises and reforms in Poland. He also spent time at Duke University through a GMF fellowship for foreign journalists.