It is vital for Japan to make the legitimacy of its territorial claim and the reasoning behind it widely known to the international community by taking the dispute to the international court. The government also needs to make efforts to help as many people as possible properly understand the Takeshima issue by explaining it thoroughly.When Shimane Prefecture established "Takeshima Day" in 2005 to commemorate the 100th anniversary of the incorporation of Takeshima into the Prefecture, the Japanese public did not seem all that interested in the Takeshima dispute. Now, however, there seems to be much more Japanese interest.
I think there are two main reasons for the increased interest. One is that the Japanese public have learned much more about the history of Takeshima, which many now believe proves undeniably Japan's claim to the islets. The other may be that the Japanese have lost patience with all the Takeshima-related, anti-Japanese antics in South Korea. In other words, they have gotten tired of all the Korean stunts meant to say, "Hey, Japan, we've got your island. Nayh, nayh, nayh, nayh, nayh!"
In the August 25 Yonhap/Reuters photo below, South Korean high school students play basketball on Takeshima (Liancourt Rocks / Dokdo), where they were shipped to once again say to Japan, "Nayh, nayh, nayh, nayh, nayh!"