U.S Air Force Maj. Jessica Sellers, 307th Force Support Squadron Commander, hugs Maj. Beth Hart, previous 307th Force Support Squadron Commander, during a change of command ceremony at Barksdale Air Force Base, Louisiana, Feb. 10, 2018. The change of command ceremony is deeply rooted in military tradition as a visible means of handing the reins of command from the departing commander to the new commander. (U.S. Air Force photo by Technical Sgt. Cody Burt/Released)