Chief Master Sgt. of the Air Force JoAnne Bass adds her coin to the American flag coin display at the Aeromedical Staging Facility, Joint Base Andrews, Md., March 4, 2021. Medics at the ASF support the reintegration of Soldiers, Sailors, Marines and Airmen by caring for critically injured patients who require stabilization, advanced trauma resuscitation, and surgical intervention prior to transport to a definitive care facility.