This research attempts to answer the question, "What is the long-term impact of international intervention on the political stability of post-conflict countries?" Somalia is used as a case study, and it is expected that the findings can be generalized to other post-conflict countries. This is a critical issue in the international relations and foreign policy fields; the 1990s alone saw an enormous increase in international intervention in post-conflict countries. Intervention began in Somalia with a humanitarian mission but soon transformed into nation-building and peace-enforcement operations. These operations were massive: 30 countries were involved at some point, and there were significant material and personnel costs. Intervention did not cease after the US-UN mission ended in 1995, but instead took on a new face with the involvement of neighboring countries such as Ethiopia and Kenya. Oftentimes the justifications for intervention, as well as the successes and failures of the missions, are tied to the intervening countries' interests, or the interests of the international organizations involved, and are thus far removed from the welfare of the intervened-upon country. Given the prevalence and wide range of these operations, it is of utmost importance to understand their long-term effects. The world has not reached a consensus on the value of such interventions, and they are likely to continue in the foreseeable future. An understanding of their long-term effects can be used to shape future policy and increase the efficacy of intervention operations.