Twelve international schools in Korea have been found to be using textbooks that refer to the body of water that lies to the east of the Korean Peninsula only as the Sea of Japan, without mentioning East Sea, which is the name used by Korea. According to Rep. Ahn Min-suk of the main opposition Democratic Party of Korea (DPK), 12 out of 38 international schools in the country use 24 textbooks that use only the names Sea of Japan or Takeshima, islets better known as Dokdo in Korea. The number of Korean nationals who attend these schools stands at 1,173.