A team of Iraqi army ranger students conducts a glass house room clearing drill as their leadership watches at Camp Taji, Iraq, July 18, 2016. This drill, conducted within a diagram or outline of a building, allows the students to practice room clearing techniques while in full view of their trainers. Camp Taji is one of four Combined Joint Task Force – Operation Inherent Resolve build partner capacity locations dedicated to training Iraqi security forces. (U.S. Army photo by 1st Lt. Daniel Johnson/Released)