Maj. Erica Legg, 192nd Support Squadron director of operations, performs the Oath of Enlistment for Chief Master Sgt. Lawanda Jackson, 192nd SS Mobility Flight chief, during her promotion ceremony on July 10, 2021, at Joint Base Langley-Eustis, Virginia. When an Airman is promoted to chief, it is tradition to perform the Oath of Enlistment. (U.S. Air National Guard photo by Staff Sgt. Bryan Myhr)