克罗地亚乌德比纳训练场，豺石-2012 特种作战演习中，美国和克罗地亚特种部队成员从美国海军HSC-28战斗直升机中队一架 MH-60S 直升机上进行快速绳降演练，豺石演习是美国欧洲特种作战司令部（SOCEUR）主导下的一年一度的多国联合特种作战演习，旨在提高参与部队的互信度与交流技战术。（U.S. and Croatian soldiers fast rope from an HH-60H Seahawk helicopter at a training base in Udbina, Croatia, Sept. 18, 2012, during Jackal Stone 2012. 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.）

克罗地亚乌德比纳训练场，豺石-2012 特种作战演习中，美国和克罗地亚特种部队成员从美国海军HSC-28战斗直升机中队一架 MH-60S 直升机上进行快速绳降演练，豺石演习是美国欧洲特种作战司令部（SOCEUR）主导下的一年一度的多国联合特种作战演习，旨在提高参与部队的互信度与交流技战术。（U.S. and Croation soldiers fast rope from an HH-60 Seahawk Helicopter, at a training base in Udbina, Croatia, Sept. 18, 2012. The training is part of Jackal Stone. Jackal Stone 2012 is part of United States European Command?s Joint Training and Exercise Program, designed to enhance joint combined interoperability with allied and partner nations. Jackal Stone 2012 supports interoperability among Croatia, the U.S. and various NATO and Partnership for Peace member nations and will help prepare participants to operate successfully in a joint, multinational, integrated environment with host-nation support from civil and governmental agencies.）

克罗地亚乌德比纳训练场，豺石-2012 特种作战演习中，美国海军HSC-28战斗直升机中队一架 MH-60S 直升机搭载美国和克罗地亚特种部队成员准备升空进行快速绳降演练，豺石演习是美国欧洲特种作战司令部（SOCEUR）主导下的一年一度的多国联合特种作战演习，旨在提高参与部队的互信度与交流技战术。（U.S. Navy pilots prepare to take off in an HH-60H Seahawk helicopter carrying U.S. and Croatian special forces members to conduct fast rope training at a base in Udbina, Croatia, Sept. 18, 2012, during Jackal Stone 2012. 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.）

克罗地亚乌德比纳训练场，克罗地亚空军一架 Mi-171 直升机在“豺石-2012”特种作战演习中演练快速绳降克罗地亚士兵，豺石演习是美国欧洲特种作战司令部（SOCEUR）主导下的一年一度的多国联合特种作战演习，旨在提高参与部队的互信度与交流技战术。（U.S. and Romanian soldiers perform a parachute jump from a Slovakian helicopter during at a training base in Udbina, Croatia, Sept. 17, 2012, during exercise Jackal Stone 2012. 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.）

克罗地亚乌德比纳训练场，豺石-2012 特种作战演习中， 斯洛伐克空军一架 Mi-17 直升机搭载美国和罗马尼亚士兵进行跳伞演练，豺石演习是美国欧洲特种作战司令部（SOCEUR）主导下的一年一度的多国联合特种作战演习，旨在提高参与部队的互信度与交流技战术。（U.S. and Romanian soldiers perform a parachute jump from a Slovakian helicopter during at a training base in Udbina, Croatia, Sept. 17, 2012, during exercise Jackal Stone 2012. 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.）