GUNNER PREP An Iraqi Mi-17 helicopter aerial gunner dons knee pads before engine-start to prepare for flight at Camp Taji, Iraq, March 2, 2010. The Iraqi gunners progress from students led by U.S. instructors to leading students themselves. U.S. instructors conduct surprise inspections to assess how well their former students take the lead. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 742533-O-SSU09-396.jpg Photo Gallery