Base Airmen prepare to move from the Bellamy Fitness Center to the Pride Hangar to process through the Personnel Deployment Function line during an Operational Readiness Exercise at Ellsworth Air Force Base, S.D., Feb. 22, 2012. The PDF line is designed to prepare and provide information for Airmen to ensure readiness for deployments. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)