11.   The right-wing Japan Youth Federation erected a lighthouse on one of the islands, sparking angry protests in Taiwan, China and Hong Kong.

12.   The three-way dispute over the archipelago was rekindled last year when Japanese rightists erected a lighthouse on one of the islands.

13.   The voyages are part of a massive wave of Chinese protests, unleashed in mid-July when Japanese nationalists erected the lighthouse.

14.   Opinion in China, Taiwan and Hong Kong was inflamed after Japanese ultra-nationalists erected a lighthouse on one of the islands in mid-July.

15.   Protesting against Japanese nationalists who erected a lighthouse, markers and memorials, some Chinese from Taiwan and Hong Kong landed on the main island last year.

16.   Public anger in Hong Kong, Taiwan and Macau over islands has heightened since July when a makeshift lighthouse was erected by Japanese right-wingers.

17.   Protests started after Japanese nationalists erected a lighthouse on one of the islands and Japan then included the chain in its economic exclusion zone.

18.   Quian met Ikeda in New York in late September, and complained that Japan had failed to stop the nationalists erecting the lighthouse.

19.   Sino-Japanese relations have been strained since July when Japanese nationalists erected a lighthouse on one of the islands called the Senkaku in Japanese and Diaoyu in Chinese.

20.   Tension over the uninhabited islands, known as the Senkakus in Japanese, has been high since Japanese ultra-nationalists erected a lighthouse on one of them in July.