The study provides an overview of the full crisis throughout its phases – starting in December 2013 with the battle for Fallujah in Anbar, to Prime Minister Al Abadi declaring victory over ISIL in December 2017 – as well as detailed information on localized emergencies. It also analyzes the evolution in number of hosted internally displaced persons (IDPs), the changes in their sectorial needs and shelter arrangements and the areas of displacement. For the first time, the relative burden of displacement in the areas hosting IDPs is analyzed divided in three regions: KRI, North Central and South.