How many people make a civil war?

Omar the editor of Iraq The Model recounts a story which appears to be replicated in numerous other Iraqi regions. He concludes that what I see in this case is that the majority is not interested in being involved in this kind of conflict but, at the same time action and reaction from gangs that do not represent the majority are capable of finding a rift among the lines of what normally is a peaceful community. (David Spector)