This paper presents a System Dynamics approach to analyzing the violence and widespread death and displacement in Darfur, Sudan, as observed since 2003.   We lay a foundation for using simulation to investigate the underlying structure and effects of violence; model analysis indicates that presently the dynamics may be driven by the population at risk more so than aggressor intent.  This model can aid in future policy analysis and establishes a foundation for using System Dynamics to understand the structure and pattern of genocide.  We present several challenges to analyzing the Darfur crisis including observability, information delays, and the choice of metrics.  Finally we discuss modeling results and options for intervention and propose several policy questions and areas for future research.