45 invasion and occupation of parts of China, while Koreans have not forgotten Japan's often brutal 1910-1945 colonisation. Machimura said he saw faults with Chinese textbooks, including a failure to take note of Japan's international contributions and pacifism in the post-war period. Li replied that China's textbooks should not be compared with Japanese "right-wing" textbooks, saying mixing up the two was akin to confusing right and wrong, the Japanese official said. They also clashed over Taiwan. Li expressed dismay over recent comments by Machimura in which he described Taiwan as being within the scope of the Japan-U.S. joint security treaty. Li reiterated that Taiwan was a domestic issue for China and added: "It is a dangerous thing to challenge China's core interests," the Japanese official said. Japan is worried about China's military build-up in recent years and after February talks with the United States, the two allies referred to a peaceful resolution of Taiwan Strait issues as a strategic priority. Beijing, which considers Taiwan a renegade province, expressed "grave concern" about the move. --SP 2345 Local Time 2045 GMT