Senior Airman Nicholas Stewart, 21st Civil Engineer Squadron explosive ordnance disposal technician, applies lubricant to an actuator part of an Northrop Grumman Remotec’s ANDROS F6A EOD robot during a maintenance class at Peterson Air Force Base, Colo., Aug. 17, 2016. The 21st EOD leadership tries to arrange this training for their Airman every two to three years to make sure they are fully capable of performing any trouble shooting that might be necessary. (U.S. Air Force photo by Staff Sgt. Amber Grimm)