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U.S. Marines stand at attention on January 17, 2012 in Camp Pendleton, California.
The San Diego area, home to several military bases, sees its share of military exercises. But it's not everyday you have 1,000 Japanese troops training alongside Americans.
In a two-week training session starting today, U.S. Marines and sailors will train the Japanese on amphibious attacks. China has reportedly asked the U.S. to cancel the drill but it appears that will not happen.
With more is Tai-Ming Cheung, director of the Institute on Global Conflict and Cooperation at the University of California, San Diego.