This volume takes up the idea of 'multiplicity' as a new common ground for international theory to reflect on the implications of societal multiplicity for areas as diverse as nationalism, ecology, architecture, monetary systems, cosmology and the history of political ideas.

Justin Rosenberg teaches International Relations at the University of Sussex, UK. His publications include The Empire of Civil Society (1994), The Follies of Globalization Theory (2000), 'International Relations in the Prison of Political Science' (2016) and numerous articles on Uneven and Combined Development.

Milja Kurki is specialist in IR theory and interested in varied ways of thinking through how we think and act in international politics. She has recently published a monograph on relational cosmology and has previously written on causation, philosophy of science, democracy and democracy promotion, and social-natural science nexus.

Introduction: Multiplicity: a new common ground for international theory?

Milja Kurki and Justin Rosenberg

1. Conflict and the separateness of peoples: investigating the relationship between multiplicity, inequality and war

Nicholas Lees

2. Nature and the international: towards a materialist understanding of societal multiplicity

Olaf Corry

3. Deciphering the modern Janus: societal multiplicity and nation-formation

Kamran Matin

4. An international politics of Czech architecture; or, reviving the international in international political sociology

Benjamin Tallis

5. Trotsky's error: multiplicity and the secret origins of revolutionary Marxism

Justin Rosenberg

6. Understanding intervention through multiplicity: protection politics in South Sudan

Anine Hagemann

7. Hierarchical multiplicity in the international monetary system: from the slave trade to the Franc CFA in West Africa

Kai Koddenbrock

8. Multiplicity: anarchy in the mirror of sociology

Andrew Davenport

9. Whither IR? Multiplicity, relations, and the paradox of International Relations

Brieg Powel

10. Multiplicity expanded: IR theories, multiplicity, and the potential of trans-disciplinary dialogue

Milja Kurki