U.S. Air Force Lt. Col. Sandeep Gill, 489th Bomb Group flight surgeon, speaks to the first group of Reserve Citizen Airmen to take the first round of COVID-19 vaccinations in the unit, Feb. 7, 2021 at Dyess Air Force Base, Texas. Gill, who came to the United States as a teenager, used gratitude and perseverance in his resiliency skillset to become a doctor and join the Air Force Reserve. (U.S. Air Force photo by Senior Master Sgt. Ted Daigle)