U.S. Air Force Senior Airman Pierre Hall and Airman 1st Class Hector Martinez, who are both assigned to the 18th Civil Engineer Squadron as structural apprentices, inspect a fiber reinforce polymer tool kit Aug. 20, 2020, at Kadena Air Base, Japan. Airmen from the 18th CES provide a full range of engineering support required to establish, operate, and maintain important base operations. (U.S. Air Force photo by Staff Sgt. Benjamin Sutton)