An anti-Japanese wave of public sentiment swept Hong Kong when a spat over sovereignty of the Diaoyu islands peaked in September, triggered by the death of activist David Chan Yuk-cheung. A fleeting nationalistic demonstration united members of rival political groups. Some set sail for the archipelago to demonstrate Chinese sovereignty.
The journey was a symbolic gesture but made international headlines after the protesters managed to beat a fleet of Japanese cruisers and plant a Chinese flag atop a rocky crest of the island chain.
At the centre of the diplomatic dispute is the potentially oil-rich seabed off the Diaoyu islands - located between Okinawa and Taiwan - and claimed by China, Taiwan and Japan.
The simmering quarrel flared after a Japanese right-wing group, the Japan Youth Federation, erected a lighthouse on one of the islets in July. The Japanese Navy thereafter cruised the waters.
The following month saw a rightist group from Okinawa erect another war memorial pole and fly a Japanese flag next to the lighthouse.
It triggered a fierce wave of anti-Japanese sentiment rooted in Japan's invasion of China in the late 1930s. China's Foreign Ministry said the lighthouse was an encroachment of its territorial sovereignty but no action was taken.