A memorial for U.S. Air Force Staff Sgt. Dylan Elchin, a Special Tactics combat controller with the 26th Special Tactics Squadron, is displayed during a service in Moon Township, Pennsylvania, Dec. 6, 2018. Elchin was killed alongside two U.S. Army Special Forces members when their vehicle struck an improvised explosive device in Ghazni Province, Afghanistan, Nov. 27. (U.S. Air Force photo by Senior Airman Joseph Pick)