Dr. Martin Quencez is a senior fellow and special adviser to the president. Over the past ten years, he has held several positions at GMF, including as managing director for GMF Strategic Foresight and director of the Paris office. He co-leads the Transatlantic Security Task Force and was an author of GMF’s annual flagship Transatlantic Trends report.

Dr. Quencez's 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 regularly invited by European ministries of defense to provide briefings and advisory support,  and frequently delivers presentations on geopolitics and transatlantic security to senior private-sector representatives.

Dr. Quencez was previously 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 worked for the Institute of Defense Studies and Analyses in New Delhi, focusing on French and Indian strategic thinking. 

Dr. Quencez studied international relations at Uppsala University and is a graduate of Sciences Po. He has a PhD in history from Sorbonne Nouvelle University. 

Roger Svensson is a former Visiting Senior Fellow at GMF.

Markus Ziener is a professor of journalism and head of the master's degree program at Media University Berlin. He teaches political theory and economics, mass media, journalistic writing, and press history. He also writes regularly for The Straits Times and the Neue Zürcher Zeitung, and contributes to the German public broadcaster Deutschlandfunk/Deutschlandradio.

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

Ziener studied in Erlangen-Nuremberg and earned a PhD in political science from Humboldt University of Berlin, focusing on financial crises and reforms in Poland. He also held a research fellowship at Duke University. In 2021–22, he was the Helmut Schmidt Fellow at GMF. He has been a Berlin-based visiting senior fellow at GMF since 2022, analyzing transatlantic relations, Russia, and Ukraine.

Jonas Parello-Plesner is a visiting fellow in GMF's Indo-Pacific program. His research focuses on Asia and China and relations with EU and the United States. Parello-Plesner has also worked at the European Council on Foreign Relations (ECFR) as a Senior Policy Fellow with a focus on European-Chinese relations.

Nicolas Bouchet is a senior visiting fellow with GMF’s European Resilience program, focusing on efforts to support democracy and civil society, including most recently democratic exiles. He also works closely with GMFs’ ReThink.CEE Fellows. He conducts research on EU and US democracy promotion, with a particular focus on Russia and Eurasia (especially the countries of the EU’s Eastern Partnership). His research interests also include US foreign policy, democratization, and civil society. He has authored numerous policy papers, reports, and articles on these topics.