Japan claims that Dokdo is their territory for following reasons.
1. Japan has long been aware of the existence of Dokdo, but Korea is not.
2. The Japanese government established a sovereignty over Dokdo in 1905, when it moved Dokdo to Shimane Prefecture.
3. There is no Dokdo on the Korean territory where Japan gives up its sovereignty over the San Francisco Peace Treaty.
4. The documents issued by the US military at the time of the Korean War show that Dokdo was incorporated into Japanese territory.
5. Japan calls on the International Court of Justice to judge Dokdo issues, but South Korea refuses to do so.
But these are all ridiculous claims.
Now, I'll tell you Korea's logic.
1. Korea imported 'Ulleungdo', an island near Dokdo in 512, and from there, Dokdo is visible to the naked eye. But there is no place to see Dokdo visually in Japan.
2. Before Japan's incorporation of Dokdo in 1905, Korea has stated that the jurisdiction to Dokdo as "Emperor Gojong decree No. 41 'in 1900.
3. There are 3358 islands in Korea, and it is physically impossible to specify them in the treaty. (Note that the 3358 numbers are not fully compiled.) So it is a ridiculous claim that Dokdo is Japanese territory because Dokdo is not mentioned in the territory that Japan should give up. Furthermore, the map based on the San Francisco Peace Treaty treats Dokdo as Korean territory.
4. At the time of the Korean War, South Korea lost to North Korea in a row, leaving only small territory. The US, which worried that the Korea would be all communized in such a situation, was to make Dokdo Island into Japanese so that Dokdo could be included in the American influence. But this is not the official position of the US and it had not been implemented.
5. Because it is so natural that Dokdo is Korean territory, it is not subject to territorial dispute and there is no reason for South Korea to judge it.
Which of the two countries do you think is more valid? I want to hear your opinion.