U.S. Air Force Col. Christopher Hawn, 489th Bomb Group commander, takes the first round of COVID-19 vaccine at Dyess Air Force Base, Texas, Feb. 7, 2021. Hawn, like dozens of other traditional Reservists in the 307th Bomb Wing, volunteered to take the vaccine. (U.S. Air Force photo by Senior Master Sgt. Ted Daigle)