Airman 1st Class Joseph Serrano, a material management specialist assigned to the 28th Logistic Readiness Squadron, begins the flag folding sequence during an honor guard training exercise at Ellsworth Air Force Base, S.D., Oct. 26, 2017. The flag fold is initiated by the mark position and then led by the non-commissioned officer in charge of pallbearers during the sequence. (U.S. Air Force photo by Airman Nicolas Z. Erwin)