Political instability, citizen alienation, terrorism and violence define the Nigerian crime scene. Nigeria has recently been included among the countries with the least peace in the world, according to the Global Peace Index. It is the 18th less peaceful state. In addition, Nigeria is the sixth country most affected by terrorism, based on the Global Terrorism Index. One further serious threat in Nigeria is the risk of mass killing, or genocide. Nigeria is the second country in Africa with the highest risk of genocide and the sixth worldwide. This risk is influenced by a population of over 200 million people, a high child mortality rate, ongoing battle-related deaths, the country's own history of mass killing, and its ethnic fractionalization.