This book presents a cross-regional comparative perspective on the trajectories of foreign fighters across different insurgent fronts in Eurasia. It was originally published as various special issues of Caucasus Survey, Terrorism and Political Violence and Studies in Conflict & Terrorism.

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1. Introduction: Researching Networked Insurgencies and Foreign Fighters in Eurasia. 2. Foreign Fighter Mobilization and Persistence in a Global Context 3. Foreign Fighters and the Case of Chechnya: A Critical Assessment 4. Foreign Bodies: Transnational Activism, the Insurgency in the North Caucasus and "Beyond" 5. The impact of jihadist foreign fighters on indigenous secular-nationalist causes: Contrasting Chechnya and Syria 6. Between Caucasus and Caliphate: The Splintering of the North Caucasus Insurgency 7. North Caucasian Foreign Fighters in Syria and Iraq: Assessing the Threat of Returnees to the Russian Federation 8. The Islamic State and the Connections to Historical Networks of Jihadism in Azerbaijan 9. Building Resilient Secular Citizens: Tajikistan's Response to the Islamic State 10. Same Sides of Different Coins: Contrasting Militant Activisms between Georgian Fighters in Syria and Ukraine

Jean-François Ratelle is Assistant Professor at the Graduate School of Public and International Affairs, University of Ottawa, Canada.

Laurence Broers is Research Associate at the Centre for the Contemporary Central Asia and Caucasus, School of Oriental and African Studies, University of London, UK.