Syrian Democratic Forces trainees, representing an equal amount of Arab and Kurdish volunteers, stand in formation at their graduation ceremony in northern Syria, Aug. 9, 2017. The multiethnic SDF represent the most reliable and capable fighting force in Syria, and they are making daily gains to reclaim Raqqa from the hold of the Islamic State of Iraq and Syria. The SDF is the Combined Joint Task Force Operation Inherent Resolve’s chief partner in Syria. Army photo by Sgt. Mitchell Ryan