Staff Sgt. Kenneth Swift, 361st Training Squadron instructor, models how to properly wear a set of HoloLens goggles during a visit from Air Vice Marshal Bruce Hedley, Joint Warfare Joint Forces Command director, at Sheppard Air Force Base, Texas, Feb. 12, 2019. Sheppard is leveraging the technology as another tool to enhance training and develop Mach-21 Airmen in areas such as aircraft maintenance and civil engineering. (U.S. Air Force photo by Airman 1st Class Madeleine E. Remillard)