China has submitted to the UN a detailed explanation of its claims to a disputed area of the East China Sea. It argues that certain geological features prove its territory extends out to a group of islands near Japan. A UN commission of geological experts will examine China's submission but does not have the authority to resolve conflicting claims. Read more
Watching Japan and China square off in East China Sea
Who do the Senkaku or Diaoyu Islands belong to? The short answer is I don't know. Japan once had a small colony there for a few decades. But they left in the 1940s. No-one has lived on the remote islands since the end of WWII. As a piece of real estate they are not very attractive. Only one is big enough to be, just possibly, habitable. Read more
US defence chief Panetta warns on Asia territory rows
China is reasserting its claim to sovereignty over the disputed Senkaku or Diaoyu islands in the East China Sea, in the wake of a Japanese government decision last week to purchase the islands from their private Japanese owners. Japanese Prime Minister Yoshihiko Noda has urged Beijing to take steps to protect Japanese nationals, but added that the authorities in both countries should "remain calm". Read more
Six Chinese surveillance ships have entered waters near islands claimed by both China and Japan. China said the ships were carrying out "law enforcement" to demonstrate its jurisdiction over the islands, known as Diaoyu in China and Senkaku in Japan. Read more
The Senkaku Islands, also known as the Diaoyu Islands in Mainland China or Tiaoyutai Islands in Taiwan, or the Pinnacle Islands, are a group of uninhabited islands controlled by Japan in the East China Sea. They are located roughly due east of Mainland China, northeast of Taiwan, west of Okinawa Island, and north of the southwestern end of the Ryukyu Islands. Read more