G. John Ikenberry is an American political scientist known for his work on international relations and global governance. He is a professor at Georgetown University and has authored several influential books, including "Liberal Order and Its Discontents." His research focuses on the dynamics of power in the international system and the role of international institutions. Ikenberry is particularly recognized for his theories on liberal internationalism and the importance of multilateral cooperation among states. He argues that a rules-based international order can help maintain peace and stability, especially in a world marked by rising powers and shifting alliances.