A range safety officer, lower right, observes, as U.S. soldiers participate in partnered marksmanship live-fire training on Tactical Base Gamberi in eastern Afghanistan, May 29, 2015. A range safety officer, lower right, observes, as U.S. soldiers participate in partnered marksmanship live-fire training on Tactical Base Gamberi in eastern Afghanistan, May 29, 2015. SHARE: Download: Full Size (1.99 MB) Tags: Photo Essays Credit: VIRIN: 462201-O-VCN47-730.jpg Photo Gallery