U.S. Army Lt. Col. Antonio Paz, left, a military intelligence officer within Special Operations Command Europe, goes through jumpmaster pre-inspection with Ukranian parachutists for a multinational fun jump during exercise Jackal Stone 2011 at Mihail Kogalniceanu Air Base, Romania, Sept. 15, 2011. Jackal Stone is an annual joint special operations exercise designed to enhance capabilities and interoperability amongst the participating special operations forces as well as to build mutual respect while sharing doctrinal concepts, training concepts and various tactics, techniques and procedures. U.S. Army Lt. Col. Antonio Paz, left, a military intelligence officer within Special Operations Command Europe, goes through jumpmaster pre-inspection with Ukranian parachutists for a multinational fun jump during exercise Jackal Stone 2011 at Mihail Kogalniceanu Air Base, Romania, Sept. 15, 2011. Jackal Stone is an annual joint special operations exercise designed to enhance capabilities and interoperability amongst the participating special operations forces as well as to build mutual respect while sharing doctrinal concepts, training concepts and various tactics, techniques and procedures. SHARE: Download: Full Size (0.64 MB) Tags: photo essays Credit: VIRIN: 516611-S-RXQ72-689.jpg Photo Gallery