Ryukyu Kingdom was an independent nation. Japan forced the annexation of the Ryukyu Kingdom in 1879, thus establishing full control of the Ryukyus in Japan's hands and ending the Ryukyuan sovereignty.
There may have been significant movements for Okinawan/Ryukyu independence following its annexation, in the period prior to and during World War II.
Japanese sovereignty shall be limited to the islands of Honshu, Hokkaido, Kyushu, Shikoku and such minor islands as we determine." As had been announced in the Cairo Declaration in 1943.
It is clearly explained that Ryukyu should not be the Japanese sovereignity.
The people of Ryukyu helped much for the Allied power to fight against Japan's army and helped much to end of the World War II.
Japan made many Okinawan school girls committed suicide by jumping off cliffs for fear of rape. Similarly, whole families committed suicide or were killed by near relatives.
Following the World War II, the United States took over control of Okinawa.
Anyway n the official documents of Ryukyu Kingdom, They have recorded that Diaoyu Islands were not part of Ryukyu, they were part of China. Japan claims Diaoyu Islands is part of Ryukyu, actually it is a lie.
