Transatlantic Relations
Niklas Ebert is a program manager with GMF’s Transatlantic Security program. Based in Berlin, he works mainly on issues of deterrence and resilience as well as German security and defense policy.
Prior to joining GMF, Ebert worked as a research assistant at the International Institute for Strategic Studies’ Defence and Military Analysis Programme in Berlin. Previously, he worked for the German Federal Foreign Office focusing on nuclear disarmament and non-proliferation. He gained additional experience at PricewaterhouseCoopers and the German Council on Foreign Relations.
Ebert received a bachelor’s degree in liberal arts and sciences from Maastricht University and holds a master’s degree in war and conflict studies from the University of Potsdam.
Sarah Jones is the Washington, DC-based managing director of GMF’s Leadership Programs. In that role, she leads five flagship leadership initiatives, manages a $2.4 million annual budget, supervises international teams across four countries, and oversees an alumni network encompassing 4,000 people in Europe and North America. Her work focuses on leadership development, organizational effectiveness, and democratic resilience, with an emphasis on aligning institutional values with strategy, talent systems, and measurable impact. She works closely with senior leadership and board committees on strategic planning and long-term organizational sustainability.
Jones is a global leadership development and organizational strategy executive with over 12 years of experience building and leading leadership initiatives across nonprofit, public, academic, and private-sector institutions. She previously served as GMF’s inaugural senior leader responsible for organizational inclusion and culture, and established the organization’s first institution-wide strategy focused on inclusive leadership capability and workforce sustainability. In addition to her executive leadership, she is an adjunct professor at American University’s School of Public Affairs, where she teaches leadership development in public and international affairs.
Jones holds a master’s degree in international education, is professionally proficient in Spanish, and brings extensive global experience from working in more than 30 countries.
Julia Tréhu is a Paris-based program manager and fellow with GMF Technology. Her focus is on US and European digital and technology policy, including technology-related trade and investment policy, platform regulation, data governance, and artificial intelligence. Tréhu holds master’s degrees in international political economy from the London School of Economics and in international security from Sciences Po Paris, and a bachelor’s degree in history from Princeton University.
James (J.D.) Bindenagel is a former Visiting Distinguished Fellow at GMF.
Sophie Arts leads GMF’s research and programming on Arctic security and geopolitics, and on North American and Nordic defense against conventional and hybrid threats. As a Washington, DC-based fellow within the Transatlantic Security program, she also works on North American continental and US homeland defense, allied cooperation in NATO and other formats, and Russian and Chinese strategic objectives and activities in the Arctic and adjacent theaters.
Arts joined GMF’s security and defense policy team in 2017. Previously, she worked at the Atlantic Council, GMF Brussels, Spiegel Online International, and Kantar Media. Her prior research covered NATO’s partnerships and flexible formats, the impact of emerging technologies on allied defense and deterrence, the dynamics of escalation within the cyber domain, and strategic stability in a multipolar world.
Her writings and commentaries are featured regularly in defense publications and international media. She is a member of The European Centre of Excellence for Countering Hybrid Threats’ pool of experts. In 2025, she served as co-chair of the task force for global peace and security for the Think7, the official G7 group that brings together the world’s leading think tanks and research centers.
Arts holds a master’s degree from Humboldt University in Berlin and a bachelor’s degree from the University of Freiburg.
Emiliano Alessandri is a visiting senior fellow at GMF. He is also a senior adviser with the Agency for Peace Building and an associate fellow with the Middle East Institute. His expertise is in the field of international security and multilateral cooperation with a particular focus on transatlantic relations, European affairs, and the Mediterranean/Middle East North Africa.
Alessandri was a resident senior transatlantic fellow with GMF between 2010 and 2013, working primarily on Mediterranean affairs and Türkiye. He subsequently served three successive secretary generals of the Organization for Security and Co-operation in Europe as a senior officer between 2013 and 2023. He also held positions with the International Center for Migration Policy Development, the Brookings Institution, and the Institute of International Affairs of Rome, and taught at the College of Europe and Central European University.
Alessandri holds a PhD in international history from the University of Cambridge and a master’s degree in international economics and US foreign policy from the Johns Hopkins University School of Advanced International Studies (SAIS).
Kristina Kausch is deputy managing director of GMF’s South and Wider Europe program, dividing her time between Madrid and Brussels. An established voice on European foreign affairs and Europe’s relations with its neighborhood, she conducts research on a broad interdisciplinary portfolio that includes international security, connectivity, the geopolitics of technology, and global power shifts.
Prior to joining GMF, Kausch held positions with the Carnegie Endowment for International Peace; FRIDE, a Spanish think tank; the Bertelsmann Stiftung; and GIZ, the German development cooperation agency. She has contributed to a wide range of media outlets including The New York Times, the Financial Times, The Guardian, Politico, El País, RTVE, Defense One, Deutsche Welle, ARD, Der Tagesspiegel, and Süddeutsche Zeitung.