U.S. Secretary of Defense, Dr. Mark T. Esper, speaks with Senior Master Sgt. John Burkhart, 131st Munitions Flight Chief, during a visit at Whiteman Air Force Base, Missouri, July 22, 2020. During his visit, Esper received an in-person introduction to various aspects of Team Whiteman's mission, total force integration between the active duty and Air National Guard wings, and ensuring the B-2 Spirit stealth bomber's combat readiness during COVID-19. (U.S. Air Force photo by Senior Airman Thomas Barley)