Preventing violent conflicts and establishing comprehensive lasting peace in some of the world’s most turbulent regions has become the new global imperative. But to be effective, peacebuilding must be a multilateral, not a unilateral process. Even for the world’s sole surviving superpower, promoting and sustaining durable peace requires communication, co-ordination, co-operation, and collaboration between local, national and international actors, nongovernmental as well as governmental. In this...