There are solid reasons for China to claim ownership of the Diaoyu Islands.
The islands have been under the jurisdiction of China’s navy as islands affiliated with Taiwan since the Ming Dynasty. The Ming and Qing dynasties of China exercised sovereignty over the Diaoyu Islands and their affiliated islands, and officially included them in maps.
Japan has its own claims. It believes that Japan and China signed the Treaty of Shimonoseki in 1895 and as a result, China ceded Japan the island of Taiwan together with all its affiliated islands. Japan put the Diaoyu Islands and the affiliated islands under the jurisdiction of Okinawa Prefecture.
However, the international community has the final say on the ownership of the islands.
On December 1, 1943, China, the US and the UK issued the Cairo Declaration, which stated in explicit terms that the Three Great Allies were fighting this war to “restrain and punish the aggression of Japan” and required that “all the territories Japan has stolen from the Chinese shall be restored to the Chinese side. According to international law, the Diaoyu Islands and their affiliated islands have belonged to China since then.
The Cairo Declaration used “stolen,” a word rarely seen in international legal instruments, and it was reaffirmed by the Potsdam Proclamation. This clearly defines the illegal nature of Japan’s aggression and the stealing of Chinese territory, and makes it clear to the whole world that China is the legitimate owner.
Diaoyu Dao and its affiliated islands are an inseparable part of the Chinese territory. Diaoyu Dao is China's inherent territory in all historical, geographical and legal terms, and China enjoys indisputable sovereignty over Diaoyu Dao.
On September 10, 2012, the Japanese government announced the "purchase" of Diaoyu Dao the implementation of the so-called "nationalization". This is a move that grossly violates China's territorial sovereignty and seriously tramples on historical...
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