Senior Airman Matt Johnson loads one of 40 bundles on a C-17 for a Joint Precision Airdrop Delivery System of humanitarian supplies to a drop zone in Afghanistan Sunday. Airman Johnson is from the 17th Airlift Squadron and currently deployed with the 816th Expeditionary Airlift Squadron in Southwest Asia. The 17 AS is scheduled to return from their four-month deployment in May. (U.S. Air Force photo/Master Sgt. Andy Dunaway)

Staff Sgt. Chris Koch checks a bundle on a C-17 for a Joint Precision Airdrop Delivery System of 40 bundles of humanitarian supplies to a drop zone in Afghanistan Sunday. Sergeant Koch is a loadmaster from the 17th Airlift Squadron and currently deployed with the 816th Expeditionary Airlift Squadron in Southwest Asia. (U.S. Air Force photo/Master Sgt. Andy Dunaway)

Loadmasters preflight a C-17 for a Joint Precision Airdrop Delivery System of 40 bundles of humanitarian supplies to a drop zone in Afghanistan Sunday. The loadmasters are from the 17th Airlift Squadron and currently deployed with the 816th Expeditionary Airlift Squadron in Southwest Asia. (U.S. Air Force photo/Master Sgt. Andy Dunaway)