Why Rivals Intervene

Rivals – states with acrimonious, militarized histories – often intervene on opposing sides of civil conflicts. These interventions are known to exacerbate and prolong civil wars, but scholars have yet to fully understand why states engage in them, given the significant costs and countervailing strategic interests. Why Rivals Intervene argues that rivals are driven by security considerations at the international level – specifically, the prospect of future confrontations with their rival – to in