ZERO EXERCISE An Afghan national army soldier holds a steady, supported position to zero his rifle at the range on Forward Operating Base Thunder, Afghanistan, Dec. 7, 2009. The training is part of a three-week course to familiarize Afghan soldiers with NATO weapons and the convoy movements of high mobility, multi-wheeled vehicles. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 113804-W-BZE52-133.jpg Photo Gallery