U.S. Army Sgt. Marcus Donaldson, foreground, and a Polish military instructor, advance on their target during partnered marksmanship live-fire training on Tactical Base Gamberi in eastern Afghanistan, May 29, 2015. Donaldson is an infantryman assigned to the 101st Airborne Division. U.S. Army Sgt. Marcus Donaldson, foreground, and a Polish military instructor, advance on their target during partnered marksmanship live-fire training on Tactical Base Gamberi in eastern Afghanistan, May 29, 2015. Donaldson is an infantryman assigned to the 101st Airborne Division. SHARE: Download: Full Size (2.23 MB) Tags: Photo Essays Credit: VIRIN: 319764-A-WAE86-526.jpg Photo Gallery