Airman 1st Class Matthew Pfeffer, 36th Airlift Squadron C-130J loadmaster, secures his harness before conducting Container Delivery System (CDS) bundle airdrops over Combined Arms Training Center Camp Fuji, Japan, March 26, 2018. CDS are most commonly used for quick aerial insertion of supplies for military and contingency operations. Bundles are used as a means of delivering equipment too heavy for the individual jumper to carry. (U.S. Air Force photo by Yasuo Osakabe)