U.S. Secretary of State John Kerry attends a Strategic Dialogue expanded meeting with Chinese officials, including Wan Gang, Chinese minister of Science and Technology, during the U.S.-China Strategic and Economic Dialogue held at the Diaoyutai State Guesthouse in Beijing July 10, 2014. REUTERS/Ng Han Guan/Pool (CHINA - Tags: POLITICS BUSINESS)

U.S. Secretary of State John Kerry walks past U.S. and Chinese national flags, as he arrives at the Strategic Dialogue expanded meeting with Chinese officials including Chinese Minister of Science and Technology Wan Gang, during the U.S.-China Strategic and Economic Dialogue (S&ED) held at the Diaoyutai State Guesthouse in Beijing, July 10, 2014. REUTERS/Ng Han Guan/Pool (CHINA - Tags: POLITICS SCIENCE TECHNOLOGY BUSINESS)

Han Sang-bum (R), head of Institute for Research in Collaborationist Activities, Yang Mi-gang (2nd R), director of the Korean House for Women Drafted to Sexual Slavery by Japan and the leader of Korean Teachers and Educational Workers Union Lee Su-ho (3rd R) attend a news conference asking for withdrawal of the controversial Japanese history textbook, in Seoul April 3, 2001. The South Korean government on Tuesday expressed "deep regret" that the Japanese government had authorised a textbook written by nationalist historians and said it would take further measures in protest.

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