This thesis seeks to answer the broad question: how does drug funding affect rebel group goals? More specifically, it explores why rebel groups reliant upon substantial narcotics-related revenue tend to be non-separatist in nature. The thesis tests three cases against five hypotheses in order gain a better understanding of the mechanisms that produce non-separatist goals among drug-funded rebel groups. This includes an examination the development of narcotics-fueled war economies, the role of state weakness in civil war, the reasons for non-separatist conflict perpetuation, as well as the discipline problems that arise as a result of a rebel group’s involvement in the drug trade. The three cases analyzed in the thesis, that of the FARC in Colombia, the Shining Path in Peru, and the Free Aceh Movement in Indonesia, present comprehensive external validation of the paper’s theoretical framework. This paper finds that state weakness, the breakdown of discipline within rebel groups, and the tendency of rebels to perpetuate conflict for profit maximization provide strong evidence of the reasons for the non-separatist nature of most drug-funded civil conflicts.