Japanese activists prepare to head for the rocky islands in the East China Sea, which are at the heart of a territorial dispute with Beijing. It's a move that could spark anger in China after arrests earlier this week of activists who landed on the islands.<br/> <br />Asia's two biggest economies have been feuding for decades over the island chain, known as the Senkaku in Japan.<br/> <br />(SOUNDBITE) (Japanese) LEADER OF ACTIVIST GROUP GANBARE NIPPON TOSHIO TAMOGAMI SAYING:<br/> <br />"With the Chinese activists just having landed, this is a way of saying do not mess around. We hope to convey to China and the Japanese people through the media or whatever means that the Senkakus are our territory."<br/> <br />Before departing, the group held a ceremony for those who died around the islands in 1945 when two ships came under attack by U.S. forces.<br/> <br />Tensions flared earlier in the week after a group of Chinese activists slipped past Japan's Coast Guard to land on one of the islands where they raised a Chinese flag.<br/> <br />Japan, keen to avoid a rerun of a nasty feud that chilled economic and diplomatic ties in 2010, deported the activists within days
