War in Iraq (2013–2017)
The War in Iraq was an armed conflict between Iraq and its allies and the Islamic State of Iraq and the Levant (ISIL, also known as ISIS or IS) which began in 2013 and ended in December 2017. Following December 2013, the insurgency escalated into a full-scale war following the conquest of Ramadi, Fallujah, Mosul, Tikrit and other towns in the major areas of northern Iraq by the Islamic State of Iraq and the Levant. At its height, ISIL held 56,000 square kilometers of Iraqi territory, containing 4.5 million citizens.