Ethnic insurgents sometimes defect to join forces with the state during civil wars. Ethnic defection can have important effects on conflict outcomes, but its causes have been understudied. Using Sunni defection in Iraq as a theory-developing case, this article offers a theory of “fratricidal...

The large-n literature on political violence has paid little attention to the distinction between insurgencies that control territory and those that do not. Territorial control has consequences for the lethality of the group, its pattern of recruitment and bargaining power. The main determinant...

Scholars have long accepted the contention that competition among terrorist organizations raises the level of violence used by the competitors. This article discusses this claim and advances another—that competition among terrorist organizations creates incentives to use less violence....

This article sets the stage for the special issue by indicating the current focus in the literature on applying analytical tools to enlighten policy makers in the practice of counterterrorism in the post-9/1 I era. In particular, the article briefly indicates the main areas of recent work. The...

The phenomenon of suicide attacks has dramatically expanded over the last twenty years, rising from no events in 1980 to a total of 1,398 events by 2008. A prominent theory has argued that suicide attacks are a coercive strategy aimed at ending foreign military occupation by democracies. Yet...

Important gaps remain in the understanding of the economic consequences of civil war. Focusing on the conflict in Rwanda in the early 1990s, and using micro data, this article finds that households and localities that experienced more intense conflict are lagging behind in terms of consumption...

International organizations (IOs) frequently link their military interventions with democratization efforts in the target state. However, existing research suggests that these attempts often fail. This article analyzes the conditions under which interventions by IOs shorten or prolong civil war...

Third-party states consider the regional destabilization consequences of civil wars when deciding to intervene. However, previous work implicitly assumes that potential interveners base their intervention decisions solely on their links to the civil war country. This approach is unlikely to...