Cargo and equipment are transported by heavy machinery through a marshaling yard by Airmen from multiple squadrons on cargo management duty during an Operational Readiness Exercise at Ellsworth Air Force Base, S.D., March 14, 2012. Part of the exercise was designed to test the base’s ability to move equipment effectively at a simulated deployed location. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)