External support to security sector reform (SSR) has emerged as a crucial instrument in international peacebuilding and state-building operations and is widely considered as the sine qua non of...Show moreExternal support to security sector reform (SSR) has emerged as a crucial instrument in international peacebuilding and state-building operations and is widely considered as the sine qua non of contemporary post-conflict reconstruction efforts in post-conflict or fragile states. Although SSR is considered as a core instrument of state-building and as a precondition for achieving peace and development, its record of achievement is quite limited. This thesis seeks to explain how the conventional SSR focus on state security undermines post-conflict transition and fails to enable an environment for sustainable peace and development. Based on the transition processes in Afghanistan and Timor Leste, this thesis argues that a state-centric approach to SSR is likely to be less effective in hybrid states and can even destabilise state recovery by protecting state institutions that are not embedded within society.Show less