The total number of deaths caused by terrorism decreased by 10% to 29,376 in 2015, according to the Global Terrorism Index 2016, reversing a four-year upward trend.
The military interventions against ISIL and Boko Haram have resulted in a 32% reduction in deaths in Iraq and Nigeria, which contributed to an overall reduction in the global figure. However, while ISIL and Boko Haram were weakened at home, these organisations spread to other countries, increasing the impact of terrorism in the rest of the world and contributing to a 6% deterioration in this year's overall GTI score.