From the deserts of Sudan to the jungles of Colombia, and from the streets of Belfast to the mountains of Kurdistan, paramilitaries have appeared in violent conflicts in very different settings. Paramilitaries are generally depicted as irregular armed organizations that carry out acts of violence against civilians on behalf of a state. In doing so, they undermine the state's monopoly of legitimate violence, while at the same time creating a breeding ground for criminal activities. Why do governments with functioning police forces and armies use paramilitary groups? This study tackles this...