Renovating mission capability
U.S. Air Force Airman 1st Class Daniel Davis, 18th Civil Engineer Squadron structural apprentice, checks the evenness of a brick wall Dec. 7, 2016, at Kadena Air Base, Japan. Using a level, structural apprentices ensure a wall will be built evenly and will be strong enough to have structural integrity. (U.S. Air Force photo by Senior Airman Lynette M. Rolen/Released)