North Korea slams Japanese textbooks for distorting history, justifying invasion Posted : 2021-04-04 17:15 Updated : 2021-04-04 17:15 In this page from a textbook for Japanese high schools that passed an evaluation by the country's related commission on March 30, 2021, is seen Dokdo Island (in a red circle) as part of the Japanese territory. Yonhap North Korea on Sunday blasted Japan for approving history textbooks that distort history and glorify Tokyo's imperial past. The North's Korean Central News Agency (KCNA) noted that those school textbooks have left out details of Japanese atrocities during its colonial period while also renewing territorial claims to Dokdo, South Korea's easternmost islets.