Why not let Japan return the Ryukyu Islands, that is, Okinawa, which was also a vassal state of the Great Qing Dynasty before World War II, and the United Nations also acknowledged this.

1945 ~ 1972—— During the American occupation, the United States implemented a policy of alienation in Ryukyu.

1April, 947-The United Nations "Agreement 2 on the former Japanese Mandate Islands" entrusted the Ryukyu Islands and Diaoyu Islands to the United States.

1970—— The United States and Japan signed the San Francisco Peace Treaty with 1, and transferred the fishing rights of Ryukyu 1 and two fish islands to Japan.

1May 1972 15-Japan resumes the exercise of administrative power over the Ryukyu Islands.

The actual control is in the hands of Ri 1, just like Zhudao and the four northern islands, and their nature should be the same. The actual control is in the hands of South Korea and Russia respectively, and people can build lighthouses, ports and other facilities on it at will.

If the territorial dispute is not answered well, don't spray it if you are not satisfied. I'm just saying, it's just my personal opinion.