Senior Airman Josh Jenkins, 28th Aircraft Maintenance Squadron weapons load crew member, secures a Mark-82 training bomb to a munitions trailer on the flightline during an operational readiness exercise at Ellsworth Air Force Base, S.D., March 20, 2013. OREs are designed to test various base functions in the event of a real-world mission tasking. (U.S. Air Force photo by Airman 1st Class Ashley J. Thum/Released)