America avenged the infamy at Pearl Harbour many times, eg Doolittle raid, nuking of Hiroshima/Nagasaki, MacArthur's occupation of Post war Japan. But USA and Japan enjoyed very good relationship today, a blip happens in the 80s, where America saw unfair competition in the automobile industry, the backlash exemplified by the hate crime that killed Vicent Chin. China and Korea are scarred by Japan's activity in the war. The visits by the politicians to the shrine always touched on the feelings of Chinese and Koreans. Also, the textbooks in Japan potrayed Japan as the victim in the war. Let's not forget, the Japanese are a very nationalistic people, even today. It's not a coincidence, foreign companies have a tough time breaking into Japan. Japan is eternally wary of China's competition for hegemony in the Far East. China on the other hand is ruled by left-wing ideology, but the opening of its market resurrect old national pride in the face of foreign competition. No surprise that China wants to create its own brand and grow it. Yonex have served its purpose of technical transfer and 'babysit' the Chinese Badminton industry. China is already dominant in the shuttlecock, badminton shoes & clothing market. Her racquet making industry is overtaking Taiwan and Japan soon. What she lacks is a well developed brand. "Li-Ning" doesn't sound appealing to a person let's say in New York or Abu Dhabi.