Today's liberal international institutional order is being challenged by the rising power of illiberal states and by domestic political changes inside liberal states. Against such a backdrop, this book offers a broader understanding of international institutions by arguing that the politics of multilateralism has always been based on ideology and ideological divisions. The book develops new theories and measures to make sense of past and current challenges to multilateral institutions. It presents a straightforward theoretical framework that analyzes multilateral institutions as attempts by st ... More

Today's liberal international institutional order is being challenged by the rising power of illiberal states and by domestic political changes inside liberal states. Against such a backdrop, this book offers a broader understanding of international institutions by arguing that the politics of multilateralism has always been based on ideology and ideological divisions. The book develops new theories and measures to make sense of past and current challenges to multilateral institutions. It presents a straightforward theoretical framework that analyzes multilateral institutions as attempts by states to shift the policies of others toward their preferred ideological positions. It then measures how states have positioned themselves in global ideological conflicts during the past seventy-five years. Empirical chapters illustrate how ideological struggles shape the design of international institutions, membership in international institutions, and the critical role of multilateral institutions in militarized conflicts. The book also examines populism's rise and other ideological threats to the liberal international order. It explores the essential ways in which ideological contestation has influenced world politics.