This is the twelfth edition of the Global Peace Index (GPI), which ranks 163 independent states and territories according to their level of peacefulness. Produced by the Institute for Economics and Peace (IEP), the GPI is the world’s leading measure of global peacefulness. This report presents the most comprehensive data-driven analysis to-date on trends in peace, its economic value, and how to develop peaceful societies. The GPI covers 99.7% of the world’s population, using 23 qualitative and quantitative indicators from highly respected sources, and measures the state of peace using three thematic domains: the level of Societal Safety and Security; the extent of Ongoing Domestic and International Conflict; and the degree of Militarisation. The results of the 2018 GPI find that the global level of peace has deteriorated by 0.27% in the last year, marking the fourth successive year of deteriorations. Ninety-two countries deteriorated, while 71 countries improved. The 2018 GPI reveals a world in which the tensions, conflicts, and crises that emerged in the past decade remain unresolved, especially in the Middle East, resulting in a gradual, sustained fall in peacefulness. Underlying the fall in peacefulness, six of the nine regions in the world deteriorated in the last year. The four most peaceful regions – Europe, North America, Asia-Pacific, and South America – all recorded deteriorations, with the largest overall deterioration occurring in South America, owing to falls in the Safety and Security domain, mainly due to increases in the incarceration rate and impact of terrorism.
