This book is about the relationship between societies and their security forces at times of great political and societal change. It uses the experiences of Croatia, Serbia and Montenegro to examine the control, management and reform of armed forces, police and intelligence agencies in the aftermath of conflict and authoritarianism. The book assesses the theory and practice of security sector reform programmes in the context of Europe and the Western Balkans, the relationship between security sector reform and normative international policy more generally, and the broader dynamics of post-conflict and post-authoritarian transformation. In so doing it addresses two underlying questions. First, how and in what ways does reform in the security sector interrelate with processes of domestic political and societal transformation, particularly democratisation. Second, how and in what ways do these processes relate and respond to internationally-driven efforts to promote a particular type of security sector reform as a component of wider peacebuilding and democracy promotion strategies.