U.S. Air Force Master Sgt. Jay Simmons, a flight engineer with the 438th Air Expeditionary Advisory Squadron, loads up a canister with 7.62mm ammo in preparation for a flight aboard an Afghan air force Mi-17 helicopter, Kabul International Airport, Kabul, Afghanistan. Oct. 8, 2011. The helicopter was going on a flying mission somewhere in Afghanistan. (U.S. Air Force photo by Staff Sgt. Matthew Smith)