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...

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...

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...

Elections constitute a fundamental element of postconflict peacebuilding efforts in the post–cold war era and are often held soon after conflicts end. Yet, the impact of early elections on postconflict stability is the subject of sharp debate. While some argue that early elections...

Scholars argue that third parties make rational calculations and intervene to influence interstate dispute outcomes in favor of their own objectives. Third parties affect not only conflict outcomes but also escalation and duration. Theories of third-party involvement are applied to understand...

Civil conflict appears to be contagious—scholars have shown that civil wars in a state’s neighborhood make citizens more likely to rebel at home. However, war occurs when both rebels and the state engage in conflict. How do state authorities respond to the potential for civil...