Members of the 145th Airlift Wing, Charlotte Fire department, distinguished visitors and family members attend a memorial service honoring four aircrew members that perished on that fateful evening, 3 years ago today, while dropping fire retardant on the White Draw Fire near Edgemont, S.D. The service was held July 1, 2015 at the Memorial Walk, North Carolina Air National Guard Base, Charlotte Douglas International Airport. (U.S. Air National Guard Photo by Master Sgt. Patricia F. Moran, 145th Public Affairs/Released)