The U.S. Army Brass Quintet performs during the U.S. Army Priority Air Transport Command change of command and responsibility ceremony at Joint Base Andrews, Md., July 14, 2017. The role of commander was passed from Lt. Col. Heather L. Maki to Lt. Col. Matthew L. Rowland during the event. Change of command ceremonies are symbolic of the transfer of command responsibility and the lasting continuity of the unit’s mission. (U.S. Air Force photo by Senior Airman Jordyn Fetter)