An aircrew with the 21st Airlift Squadron assigned to Travis Air Force Base, California, flies a low level training mission Jan. 24, 2022, somewhere over southern California. The purpose of the training is to employ one of the many C-17 Globemaster III tactics, techniques, and procedures to safely ingress a contested environment while minimizing detection from potential adversary threats. (U.S. Air Force video by Senior Airman Alexander Merchak) More