U.S. Secretary of Defense Dr. Mark T. Esper speaks with 509th and 131st Bomb Wing maintainers 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 with its Air National Guard partner unit and maintenance of B-2 Spirit combat readiness during COVID-19. Esper met with Airmen to discuss diversity and inclusion in the ranks — as he has done at DOD installations around the world in the last month. (U.S. Air Force photo by Senior Airman Thomas Barley)