Members of the Japan Ground Self-Defense Force train alongside U.S. Marines with the MV-22B Osprey during the final key event of Exercise Iron Fist 2013 here, Feb 13. It marked the first time JGSDF troops with the Western Army Infantry Regiment trained with the Osprey aircraft. During the exercise, the 13th Marine Expeditionary Unit and JGSDF have been conducting bilateral training to improve their interoperability, enhance military-to-military relations, and sharpen skills essential to crisis response. - Members of the Japan Ground Self-Defense Force train alongside U.S. Marines with the MV-22B Osprey during the final key event of Exercise Iron Fist 2013 here, Feb 13. It marked the first time JGSDF troops with the Western Army Infantry Regiment trained with the Osprey aircraft. During the exercise, the 13th Marine Expeditionary Unit and JGSDF have been conducting bilateral training to improve their interoperability, enhance military-to-military relations, and sharpen skills essential to crisis response.