U.S. Air Force Master Sgt. Sharon Nichols, Air Combat Command Directorate of Air and Space Operations command and control manager, Col. Steven Fino, 1st Fighter Wing vice commander, and Senior Master Sgt. Vanessa Johnston, ACC Intelligence Directorate, 1A8XX Air Force Specialty manager, lay a wreath during the POW/MIA 24-hour Recognition Run closing ceremony at Joint Base Langley-Eustis, Virginia, Sept. 21, 2018. As of Aug. 29, 2018, the number of Americans missing and unaccounted for from the Vietnam War is 1,594. (U.S. Air Force photo by Airman 1st Class Anthony Nin Leclerec)