The Diaoyu Islands are an inalienable part of the sacred territory of China. This can be proved by evidence drawn from history, geography and international law.
Diaoyu Islands were discovered by China 400 years earlier than by Japan.
Japanese historical maps also depict the Diaoyu Islands as part of Chinese territory
Geologically, Diaoyu Islands are located in the vicinity of the Taiwan Ocean Basin on the edge of the East China Seabed. More specifically, the islands are located on the fringe of the continental shelf upon which rest the two Chinese provinces of Fujian and Zhejiang. These islands are natural extensions of the land mass extending from the Chinese mainland and Taiwan Island into the ocean, with the seabed in this region being less than 200 meters in depth. There is a dip in the seabed about 10 nautical miles south of Diaoyu Islands, where the seabed is more than 1,000 feet deep. Geologists refer to this as the "Ryukyu Trough" (çç海槽). As there are no continental shelves in this trough, in the geographical sense, the Diaoyu Islands are therefore not connected to the Ryukyu Islands and cannot be considered to be part of the natural extension of Japan's Ryukyu territory.
In fact, over the past century, Taiwanese fishermen often operated in the waters around the Diaoyu Islands. When the fishermen encountered thunder storms, they would seek shelter in the 1,500-meter-wide strait between the Diaoyu and Nanxiao Islands. On the other hand, Japanese fishermen were rarely spotted in the area over the past decade. The main reasons for this are simply the prevalent Northeast and Southwest monsoons in the East China Sea throughout the year as well as the Japan Current (é»æ½®/Kurushio) which flows northeast from Taiwan. As Ryukyu fishermen were unlikely to sail at right angles into the prevailing wind to reach the Diaoyu Islands, this explains why Taiwanese fishermen never encountered any Ryukyu natives.
International Law: Japan did not fulfill the condition of "occupation". The Diaoyu Islands are not part of the Ryukyu Islands. US and Japan cannot do an under-the-table deal on the islands
