Oath of Enlistment Defense Secretary Dr. Mark T. Esper administers the oath of enlistment to Air Force airmen entering basic military training at Joint Base San Antonio-Lackland, Texas, June 16, 2020. Esper met with Air Education and Training Command leaders to see firsthand how basic military training is fighting through COVID-19 with health protection measures in place and adapting operations to Centers for Disease Control and Prevention guidance. The visit also allowed him to witness how a citizen becomes an airman during the COVID-19 pandemic. SHARE IMAGE: Download Image: Full Size (1.34 MB) Tags: Defense Secretary , Air Force, Esper Photo By: Johnny Saldivar, Air Force VIRIN: 200616-F-YQ806-0364C.JPG Photo Gallery