War in Ukraine

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.

Brock D. Bierman is president and CEO of Ukraine Focus, a Washington, DC-based humanitarian organization committed to working directly with communities across Ukraine to meet urgent assistance needs through direct cooperation with Ukrainian local, state, and federal authorities.

Prior to helping found Ukraine Focus, Bierman established the Volunteer Ambulance Corps, Light Up Ukraine, and Playgrounds 4 Peace. These programs have helped delivered millions of dollars in humanitarian assistance to Ukraine since February 2022. Along with Ukraine Focus’ Rebuild project, they help thousands of Ukrainians defend their freedoms, rebuild their communities, and become more hopeful and resilient.

For his humanitarian contributions, Ukraine's Territorial Defense Force (TDF) awarded Bierman the Shield of the TDF of the Armed Forces of Ukraine and made him an honorary member.

Bierman has organized and led 13 missions to Ukraine since the beginning of Russia’s full-scale invasion, raised $2.5 million in cash and in-kind contributions to support Ukraine Focus programs in 2023 alone, and established key relationships and partnerships with international organizations such as Rotary International and the City of Albany, New York.

Bierman has served two presidents, most recently as the assistant administrator of the United States Agency for International Development's Bureau for Europe and Eurasia, and was confirmed by the US Senate by unanimous consent. Bierman also served three terms in the Rhode Island House of Representatives. A native of Rhode Island, Bierman received a bachelor’s degree in journalism from Bowling Green State University in Ohio.

Olena Prokopenko is a senior fellow at GMF. She formerly managed Eastern Neighborhood programs at the European Endowment for Democracy in Brussels and served as a development adviser at the Danish embassy in Kyiv. 

Prokopenko previously chaired international relations at RPR Coalition, Ukraine’s largest civil society platform, and advised Ukraine’s finance minister on donor relations. She served as a civil society expert for the UN Development Programme and the Council of Europe, and worked as a government relations manager at Hill+Knowlton Strategies.

Prokopenko is a co-founder of the Transatlantic Task Force for Ukraine and a government relations trainer at the Kyiv School of Economics. Her analysis of Russia’s war in Ukraine and Ukraine’s reform progress is regularly featured intop international media, including the BBC, Bloomberg, MSNBC, Al Jazeera, TIME magazine, Newsweek, and Le Monde.

Prokopenko is a lawyer by training and an alumna of the US State Department’s Edmund S. Muskie Graduate Fellowship Program. She holds a master’s degree in political science from Western Illinois University.