Most of all, the U.S. state of Virginia has revised the guidelines for history and social science education in line with a newly enacted law that requires textbooks to use the Korean name ¡°East Sea¡± alongside the Japanese name ¡°Sea of Japan¡± for the body of water between the two countries on 2017.
According to IHO(International Hydrographic Organization) and UNCSGN(United Nations Conferences on the Standardization of Geographical Names), in case of topographical feature shared with two or more countries, yet naming differently in their own languages, all of the names in each language should be marked.
Once Korea and Japan agree on a common designation, that is in accord with the general rule of international cartography, we will then follow the agreed-on designation.
Thank you for your time.
Sincerely yours