Pilatus Air Support A Slovenian air force Pilatus PC-9 aircraft flies to support U.S. joint terminal attack controllers during Rock Proof V at Pocek Range in Postojna, Slovenia, Oct. 19, 2015. U.S. Army photo by Paolo Bovo SHARE: Download: Full Size (1.77 MB) Tags: photo essays, exercise rock proof v, postonja, slovenia, paolo bovo, live-fire, u.s. paratroopers, all images Credit: Paolo Bovo VIRIN: 151019-A-JM436-756.JPG Photo Gallery