Lt. Col. Esther Mitchell, 507th Medical Squadron chief nurse at Tinker Air Force Base, Oklahoma, prepares to deploy to help the fight against COVID-19 April 15, 2020, at Will Rogers World Airport in Oklahoma City. The deployment is part of a larger mobilization package of more than 120 doctors, nurses and respiratory technicians Air Force Reserve units across the nation provided within 48 hours in support of COVID-19 response to take care of Americans.(U.S. Air Force photo by Senior Airman Mary Begy)