Amazing. The following photo is the type of thing that RIMPAC makes possible...courtesy of the US Navy. (Thanks Asif, for finding it.)
That's the Japanese Maritime Self Defense Force (JMSDF), JS Ise, DDH-182, helicopter carrier, docked across from the Chinese Navy (PLAN), Haikou, DDG-171, destroyer, at Pearl Harbor. Both are attending RIMPAC 2014.
Normally, those two vessels would not be wuithin many, many miles of each other.
But, they are both flying the American flag while there in port, and they can come together under common interests and goals with such exercises.
An amazing photo.