BEZMER AIR BASE, Bulgaria — A US Air Force C-130 Hercules delivers U.S. Air Force, U.S. Army and Bulgarian special forces paratroopers to a drop zone near here during Exercise Thracian Spring '08 conducted the week of April 4, 2008. The Airmen and Soldiers conducted several day/night static line jumps as part of the bilateral training exercise designed to improve interoperability and cooperation.(Department of Defense photo by Air Force Master Sgt. Scott Wagers)