What drives violence against civilians in civil war? Evidence from Guatemala's conflict archives

Dominant theories of mass violence hold that strategic concerns in civil war drive the deliberate targeting of civilians. However, the causal mechanisms that link strategic objectives to large-scale violence against civilians remain underspecified, and as such the causal logics that underpin each remain blurred. In this article, we identify and explicate four plausible mechanisms that explain why armed groups would target, for strategic purposes, civilians in war. We then turn to the peak period of violence during the Guatemalan armed conflict to assess which mechanisms were most prevalent. Specifically, we leverage unique archival data: 359 pages of military files from Operation Sofia, a month-long counterinsurgent campaign waged in the northwestern Ixil region. Through process tracing of real-time internal communications, we find that state actors most commonly described the civilian population as loyal to rebel forces; violence against civilians was a means to weaken the insurgency. Troops on the ground also depicted the Ixil population as winnable', which suggests that security forces used violence in this period to shape civilian behavior. These findings are most consistent with the idea that mass violence in this case and period was a coercive instrument to defeat insurgents by punishing civilians for collaboration. The evidence from this period is less consistent with a logic of genocide, in which the purpose of violence would be to destroy unwinnable' civilian groups. Our analysis illustrates how a mechanism-centered approach based on process tracing of conflict archives can help uncover logics underlying civilian killing.