Assessment of the Politico-Military Campaign to Counter ISIL and Options for Adaptation

"This report assesses the campaign against the Islamic State (ISIL), focusing on the military and political lines of effort. The capabilities and motivation of the various counter-ISIL forces on the battlefield are assessed, as well as the U.S.-led efforts to provide training, equipment, advice, and assistance, including air support. While the campaign has degraded ISIL by targeting leadership and retaking a portion of territory, achieving lasting defeat of ISIL will be elusive without local forces capable of holding territory. Successful conclusion of the campaign will require significantly increased effort on two fronts. First, more-comprehensive training, advising, and assisting will be required to create more-capable , coordinated indigenous forces of appropriate composition and enable them to regain and hold territory. Second, political agreements must be forged to resolve key drivers of conflict among Iraqis and Syrians. Without these elements, resurgent extremist violence is likely. Many factors complicate the prospects for success, including sectarian divisions in Iraq, Iranian support for Shia militias in Iraq and Syria, the Syrian civil war, and Russian intervention to su