Intrastate conflicts, such as civil wars and ethnic confrontations, are the predominant form of organized violence in the world today. But internal strife can destabilize entire regions, drawing in people living beyond state borders-particularly those who share ideology, ethnicity, or kinship with one of the groups involved. These nonstate actors may not take part in formal armies or political parties, but they can play a significant role in the conflict. For example, when foreign volunteers forge alliances with domestic groups, they tend to attract other foreign interventions and may incite the state to centralize its power. Diasporan populations, depending on their connection to their homeland, might engage politically with financial support or overt aggression, either exacerbating or mitigating the conflict. Nonstate Actors in Intrastate Conflicts takes an interdisciplinary approach to understanding the ways external individuals and groups become entangled with volatile states and how they influence the outcome of hostilities within a country's borders. Editors Dan Miodownik and Oren Barak bring together top scholars to examine case studies in Afghanistan, Lebanon, Israel/Palestine, and Turkey and explore the manifold roles of external nonstate actors. By shedding light on these overlooked participants whose causes and consequences can turn the tide of war, Nonstate Actors in Intrastate Conflicts provides a critical new perspective on the development and neutralization of civil war and ethnic violence. Contributors: Oren Barak, Chanan Cohen, Robert A. Fitchette, Orit Gazit, Gallia Lindenstrauss, Nava Löwenheim, David Malet, Dan Miodownik, Maayan Mor, Avraham Sela, Gabriel (Gabi) Sheffer, Omer Yair.