Preface Confronted with a wide variety of conflicts, the international community has attempted to respond through humanitarian assistance, development aid, crisis prevention and conflict resolution programmes. To date many of these activities have exacerbated conflict dynamics as much as they have enhanced the opportunities for sustainable development and peace. In an effort to understand what works, lessons learned and best practices are being collected usually in the form of evaluations of individual projects or programs. Although the number of studies undertaken has increased, few lessons...