These are the errors I found. Korea and Japan are the sea between the seas, I think of a problem.
You can see it by looking at the historical literature and the highland map of Korea. Korea over the territory, can confirm that, in fact, the ownership of Dokdo and Ulleung Island, located in the ocean has South Korea's unique addresses. However, when Japan colonized Korea in the 19th century, Japan did not regain sovereignty. It was based on facts, not personal opinions.
So 'sea of japan' corrected to 'east sea' I want.