A Defender from the 377th Security Forces Group fires blanks at opposing forces during a force-on-force training at Kirtland Air Force Base, New Mexico, Dec. 13, 2019. The force-on-force training provides an environment where Defenders from the Group’s different squadrons work together to perfect tactics for situations demanding interoperability. (U.S. Air Force photo by Airman 1st Class Austin J. Prisbrey)