Manfred Weber (Chairman, EPP Parliamentary Group, European Parliament, Brussels), Petro Poroshenko (President, Ukraine, Kyiv), Mamuka Bakhtadze (Prime Minister, Georgia, Tbilisi), Andrej Plenković (Prime Minister, Republic of Croatia, Zagreb), and Thomas Greminger (Secretary General, Organization for Security and Co-operation in Europe, Vienna), and Ian Bremmer (President and Founder, Eurasia Group, New York, moderator)
