In classical terms, a modern state exists because it “successfully claims the monopoly of the legitimate use of physical force” within its territory.  Others may carry weapons, but only the state can lawfully deploy coercion, and it must be able to prevent rivals from sustaining organised violence over time. Now in Nigeria, there is the slow erosion of the state’s sovereign monopoly of violence.  As that foundation begins to crumble, everything built on it begins to shudder.