U.S. Air Force Master Sgt. Bret Barlow, 1st Aircraft Maintenance Squadron unit deployment manager, hands a folder to Airman 1st Class Timothy Back, 94th Aircraft Maintenance Unit aircraft systems apprentice, in preparation for deployment at Langley Air Force Base, Va., Jan. 8, 2013. The deployed units will perform training under the direction of the 18th Wing at Kadena Air Base, Japan. (U.S. Air Force photo by Airman 1st Class Victoria Taylor/Released)