U.S. Air Force Col. Sean Tyler, 633rd Air Base Wing outgoing commander, thanks family, friends and leaders for their support during a change of command ceremony at Joint Base Langley-Eustis, Virginia, June 20, 2019. After his two years at JBLE, Tyler will move on to serve at the Pentagon, Washington, D.C. (U.S. Air Force photo by Airman 1st Class Alexandra Singer)