U.S Air Force Senior Airman Gage Duvall, 2nd Air Support Operations Squadron joint terminal attack controller in training, coordinates with U.S. Army soldiers during exercise Rock Proof V Oct. 16, 2015, at the Pocek Training Range, near Postojna, Slovenia. The 2nd ASOS provided close air support for the 2nd Battalion, 503rd Infantry Regiment. (U.S. Air Force photo/Staff Sgt. Armando A. Schwier-Morales)