Security sector reform, a conceptual framework of principles and best practices for the reconstruction of the security architecture of the state, has come to be accepted as a central facet of stabilization and state-building processes in fragile, collapsed and post-conflict states. However, the concept is still immature and has a mixed success rate. The purpose of this project is to deconstruct the SSR model, analyze its practical application in different contexts and offer advice on how to increase its effectiveness. Particular attention will be paid to the governance dimension of SSR, which includes developing parliamentary oversight capacity of the security institutions and the restructuring of line security ministries. The project will focus on three case studies –- Haiti, Afghanistan and South Sudan –- each of which features SSR programs at different stages of development.