Airman 1st Class Conner Tolley, 28th Maintenance Squadron hydraulics technician, removes safety wire from a brake housing during disassembly at Ellsworth Air Force Base, S.D., May 11, 2012. Ellsworth maintainers build and maintain various hydraulic components that keep Ellsworth’s B-1 bomber fleet mission capable. (U.S. Air Force photo by Airman 1st Class Alystria Maurer/Released)