U.S. Air Force Airmen from the 644th Combat Communications Squadron acting as cadres and opposing force coordinates an attack on a map during exercise Dragon Forge June 15, 2017, at Andersen South, Guam. Exercise Dragon Forge is a 164-hour training exercise designed to teach, train and build combat skills, while instilling the warrior ethos into CBCS Airmen. (U.S. Air Force photo by Airman 1st Class Christopher Quail)