Roseanne Thornton is a former Chief Financial Officer at GMF.

David A. Greene has led Colby College through transformational change since becoming its 20th president in 2014. The college has added new academic programs in areas such as data science, computational biology, genomics, and environmental humanities. It has also dramatically enhanced its arts programs, collections, and infrastructure, including the construction of three new arts buildings since 2021. 

To more deeply connect Colby’s curriculum to the world’s most pressing challenges and to afford all students opportunities for meaningful global, research, and internship experiences, the College created centers of exploration in the areas of artificial intelligence, biosciences innovation, climate change and the environment, entrepreneurship, the arts, and public policy. In 2022, Colby established a 500-acre island campus off the coast of Maine. 

These initiatives, along with one of the most generous financial aid packages for low- and middle-income families, have made Colby the most sought-after liberal arts college in the country.  

Colby’s commitment to its home city of Waterville, Maine has become a national model for partnership and reinvestment. The college spearheaded $200 million in investments downtown, and students living in Colby’s Main Street residence hall contribute to the community through independent civic engagement projects. 

 Previously, Greene held leadership roles at University of Chicago, Brown University, and Smith College. He serves on the boards of the Marine Biological Laboratory at Woods Hole, Massachusetts, the German Marshall Fund, and the Wyeth Foundation for American Art. He earned a bachelor’s degree from Hamilton College and two master’s degrees and a doctoral degree from Harvard University 

Julita (Jul) Thanapalasingam is GMF’s government relations program coordinator. She previously interned at the American Maritime Congress and US Department of Homeland Security, where she focused on congressional relations and government engagement. She also worked for the New Jersey state legislature. 

Her policy and research interests include transatlantic security and cooperation, NATO, defense capabilities and development, the prosecution of war crimes, and international humanitarian law.

Thanapalasingam graduated summa cum laude from American University (AU), earning a bachelor’s degree in justice and law with a concentration in counterterrorism and security studies. She was a member of the School of Public Affairs honors program. She also studied in Belgium under AU’s EU In Action program and interned during that time for Edelman Global Advisory.

Ty Melnick is a Washington, DC-based program coordinator at GMF. She supports the Marshall Memorial Fellowship, GMF's flagship leadership program, and assists in implementing other leadership program initiatives. 

Melnick holds a bachelor's degree in international studies with specializations in international political economy and global development from American University.

Heli Tiirmaa-Klaar is a visiting distinguished fellow with GMF Technology. She is the chair of the steering group of the Ukraine Defence Contact Group IT Coalition, a multinational cyber defense assistance format. She also serves at the board of directors at the Global Cyber Alliance.
 
Tiirmaa-Klaar was previously director of the Digital Society Institute at the European School of Management and Technology in Berlin. She also served as ambassador for cyber diplomacy and director general of the Department of Cyber Diplomacy at Estonia's Ministry of Foreign Affairs, where she led the country's efforts to promote norms and international law to guide states' cyber activities. She established and worked as head of the Cyber Policy Coordination Unit at the European External Action Service, where she led and coordinated EU external relations on cyber issues and co-led the preparation of European Cybersecurity Strategies. She established EU strategic cyber dialogues with Brazil, India, Japan, South Korea, the United States, and several international organizations. She also launched the EU's global cyber capacity-building programs and led the development of the EU Cyber Diplomacy Toolbox to strengthen the bloc's response to malicious cyber activity. In 2011, she was seconded to NATO headquarters, where she developed NATO's cyber defense policy.
 
Tiirmaa-Klaar has been working on cybersecurity since 2007, when she led the development of Estonia's national cybersecurity strategy. She also coordinated the strategy's implementation, managed the National Cybersecurity Council, and led the establishment of Estonia's national cyber resilience structures and public-private partnerships for cybersecurity. Earlier in her career, she held various senior positions in the Estonian Ministry of Defence and at the University of Tallinn. Her analyses have been published in numerous academic journals.

Susanna Numminen is a Berlin-based program coordinator on GMF’s Indo-Pacific program. Her responsibilities include the coordination of all operations for the India Trilateral Forum and the Japan Trilateral Forum.

Numminen previously worked as a security specialist in the Finnish prime minister’s office, conducting comprehensive security analyses, developing security preparedness for standard and disruptive conditions, and serving as the liaison for equality and equity. She was also a global market insight associate at Atheneum Partners, an expert network based in Germany that connects clients with industry experts to exchange specialized knowledge. In that position, she coordinated consultations in public policy, energy, and financial markets, among other fields.

Numminen holds a master’s degree in politics and organizations and a bachelor’s degree in political science, with minors in gender studies and social psychology, from the University of Helsinki. She speaks fluent Finnish and English, and has a good command of German and Swedish.

Sayuri Romei is a Washington, DC-based senior fellow in GMF’s Indo-Pacific program. She leads work on Japan and heads the Japan Trilateral Forum. Her research focuses on US-Japan relations and security issues in the Indo-Pacific.

Romei was previously an associate director of programs at the Maureen and Mike Mansfield Foundation, where she was responsible for the Next Generation of US-Japan Nuclear Experts program and the Mansfield Forum on Energy and Climate Change, among other initiatives. She was also a Stanton nuclear security fellow at the RAND Corporation, a public policy fellow at the Wilson Center, the fellow for security and foreign affairs at Sasakawa Peace Foundation USA, and a MacArthur nuclear security fellow at Stanford University’s Center for International Security and Cooperation.

Romei holds bachelor’s degrees in English language and literature from the University of Sorbonne, and in international relations from the University of Roma La Sapienza, and a master’s degree in international relations and a PhD in political science from Roma Tre University. Her work has been featured in The Washington Post, Kyodo News, The Bulletin of the Atomic Scientists, and The Air Force Journal of Indo-Pacific Affairs, among other media outlets. She has appeared on BBC World News, the BBC World Service, and the PBS NewsHour to comment on security issues in East Asia. She speaks Italian, French, and Japanese, and is studying Korean.