The world as we see it around us does not immediately suggest that we have learned much about peaceful coexistence. Whether it is Iraq or Israel-Palestine, Sri Lanka or Nepal, Darfur or the Eastern Congo, the Korean Peninsula or the Taiwan Strait, Colombia or the Caucasus, London or Bali, or wherever else in the world each day the golden media rule applies – “if it bleeds, it leads” – we are assailed with a constant flow of news about war, potential war or violent extremism which seems depressingly endless. But what I want to suggest is that, for all that has gone wrong and continues to go wrong when it comes to war, civil war, mass violence and terrorism, conflict is not inevitable. We have learned a great deal about how to prevent and resolve it, particularly over the last decade; the record is rather better than it seems (at least in relation to war and civil war, if not terrorism) and we can do better still if governments and intergovernmental organizations apply the right kinds of policies and give the right kind of leadership.