Members of the 633rd Security Forces Squadron, Air Force Office of Special Investigation and Naval Criminal Investigative Services conduct a ruck march in memory of joint patrol team Hustler 6 at Joint Base Langley-Eustis, Virginia, Dec. 21, 2018. Four AFOSI Special Agents and two Security Forces defenders were killed when their joint patrol, Hustler 6, was attacked near Bagram Air Field, Afghanistan, Dec. 21, 2015. (U.S. Air Force photo by Airman 1st Class Anthony Nin Leclerec)