Chris Ward, 100th Civil Engineer Squadron Heating and Ventilation fitter and boiler mechanic from Brandon, Suffolk, changes a fuel filter on the burner's supply line March 5, 2013, at RAF Mildenhall, England. If any item has a malfunction, the military and civilian workforce is on call 24-hours-a-day, 365-days-a-year to get them back into operation in order to support the wingâ€™s mission. (U.S. Air Force photo by Gina Randall/Released)