Hi-res pics included

Identified as the largest joint, bilateral field training exercise in Japan between the two nations , Keen Sword 11 was designed to allow the two militaries to practice and evaluate the coordination procedures and interoperability elements required to effectively and mutually respond to the defense of Japan, or to a regional crisis or contingency situation in the Asia-Pacific region.[pacaf.af.mil]

Hi-res pics here, here, here and here ...