HMAS Warramunga (FFGH 152)

Australian Anzac-class frigate HMAS Warramunga (FFGH 152) returns to Joint Base Pearl Harbor-Hickam after participating in Rim of the Pacific (RIMPAC) 2010 exercises. RIMPAC is a biennial, multinational exercise designed to strengthen regional partnerships and improve multinational interoperability. (Photo: U.S. Navy/Mass Communication Specialist 2nd Class Class Jon Dasbach/Released)

JS Narushio (SS 595)

The Japanese Maritime Self Defense Force submarine JS Narushio (SS 595) pulls into Pearl harbor for a scheduled port call before starting Rim of the Pacific (RIMPAC) 2008. RIMPAC, the world's largest multinational exercise, is scheduled biennially by U.S. Pacific Fleet and takes place in the Hawaiian operating area during June 29 - July 31. Participants include Australia, Canada, Chile, Japan, Netherlands, Peru, Republic of Korea, Singapore, United Kingdom and the U.S. India, Colombia, Mexico, and Russia are scheduled to send observers. (Photo: U.S. Nav/Mass Communication Specialist 1st Class Michael R. McCormick)

JS Narushio (SS 595)

Japanese sailors aboard the Japanese Maritime Self Defense Force ship JS Narushio (SS 595) arrive in Pearl Harbor for the Rim of the Pacific (RIMPAC) 2008 exercise. RIMPAC, the world's largest multinational exercise, is scheduled biennially by U.S. Pacific Fleet and takes place in the Hawaiian operating area during June 29 - July 31. Participants include Australia, Canada, Chile, Japan, Netherlands, Peru, Republic of Korea, Singapore, United Kingdom and the U.S. India, Colombia, Mexico, and Russia are scheduled to send observers. (Photo: U.S. Navy/Mass Communication Specialist 3rd Class Thomas L. Rosprim)

JS Narushio (SS 595)

The Japanese Maritime Self Defense Force submarine JS Narushio (SS 595) arrives at Naval Station Pearl Harbor for Rim of the Pacific exercise (RIMPAC) 2008. RIMPAC is the world's largest multinational exercise and is scheduled biennially by the U.S. Pacific Fleet. Participants include the United States, Australia, Canada, Chile, Japan, the Netherlands, Peru, Republic of Korea, Singapore, and the United Kingdom. (Photo: U.S. Navy/Mass Communication Specialist 2nd Class Paul D. Honnick)