Thunder Challenge Air Force Airman 1st Class Cory Williams takes a test during Thunder Challenge, a combat weather exercise, at Fort Liberty, N.C., Oct. 16, 2023. SHARE IMAGE: Download Image: Full Size (0.3 MB) Tags: Air Force, Training, Thunder Challenge Photo By: Air Force Staff Sgt. Spencer Slocum VIRIN: 231016-F-AP370-2335C.JPG Photo Gallery