Dmytro Kuleba served as Ukraine's Minister of Foreign Affairs from 2020 to 2024, leading the country's diplomacy through the early years of Russia's full-scale invasion. As one of the most high-profile members of President Volodymyr Zelensky’s cabinet, he became an architect of Ukraine's international response, helped build global coalitions, and secured military and political support. Renowned for his strategic thinking and wartime communications, he helped transform modern diplomacy amid unprecedented challenges. Today, as a Senior Fellow at Harvard University and an Associate Professor at Sciences Po, Kuleba continues to shape the global debate on security, defense, resilience, and leadership—offering invaluable insights into how nations can find their own trump cards when the old rules no longer apply.