U.S. Army troops conduct safety checks and mount weapons on trucks before conducting convoy operations at night on Kandahar Airfield, Afghanistan, July 30, 2013. U.S. Army troops conduct safety checks and mount weapons on trucks before conducting convoy operations at night on Kandahar Airfield, Afghanistan, July 30, 2013. SHARE: Download: Full Size (1.61 MB) Tags: photo essays Credit: VIRIN: 739659-J-BIK52-865.jpg Photo Gallery