Staff Sgt. Emmanuel May, right, and Staff Sgt Keith Hartfiel, 419th Maintenance Squadron Aerospace Ground Equipment Flight, remove fluid from a piece of equipment during maintenance at Hill Air Force Base, Utah, Oct. 4, 2019. Unit Airmen maintain over 600 pieces of equipment that support the mission of crew chiefs, avionics, weapons and ammo troops. (U.S. Air Force photo by R. Nial Bradshaw)