U.S. Air Force Master Sgt. David Hsu, 624th Aeromedical Staging Squadron aerospace medical technician, takes the oath of enlistment from Lt. Col. Ramos Regan, a 624th ASTS clinical nurse, via video teleconference during a virtual reenlistment as part of the 624th Regional Support Group virtual unit training assembly April 4, 2020, from his home in Hawaii. Air Force Reserve Airmen in Hawaii and Guam continued mission readiness training during the first-ever 624th RSG virtual UTA, which was implemented to help keep Airmen safe during COVID-19 pandemic. (Courtesy Photo)