Abstract
This chapter investigates one of the most powerful mechanisms by which groups may be formed, inspired, and coordinated—ritual—which may be defined as normative behavior with an irretrievably opaque causal structure. The divergent modes of religiosity (DMR) theory is applied to armed groups engaged in civil conflicts, some of which explicitly incorporate “religious” traditions while others vehemently repudiate supernatural beliefs of any kind. It is argued that the DMR theory can be extended to explain recurrent features of ritual traditions which lack many or all beliefs typically marked “religious.” Unlike many religions, rebel groups tend to display the predictions of only one mode, although this may be an effect of small sample size. It is believed that the DMR theory can possibly clarify broad patterns in intergroup violence and the dynamics of contemporary civil wars.