U.S. Air Force Airmen assigned to the 18th Medical Group and 18th Operations Support Squadron navigate a jungle as part of an exercise during the Preventative Aerospace Medicine Convention April 21, 2017, at Kadena Air Base, Japan. Members of the 18th OSS survival, evasion, resistance and escape flight assist the PAMACON by providing training on how to safely navigate with maps and compasses. (U.S. Air Force photo by Airman 1st Class Quay Drawdy)