U.S. Secretary of Defense Dr. Mark T. Esper addresses Airmen prior to administering the oath of enlistment during his visit June 16, 2020, at Joint Base San Antonio-Lackland, Texas. Esper met with AETC leaders to see firsthand how Basic Military Training is fighting through COVID-19 with health protection measures in place and adapting operations to current Centers for Disease Control and Prevention Guidance. The visit also allowed him to witness how a citizen becomes an Airman during COVID-19.