In addition to the war crimes others mentioned, Korea was also under imperial Japanese rule for a number of years, during which they were generally oppressed and attempts were made to attack Korean culture (e.g. the Korean language was banned, Korean cultural artifacts were taken from the country, Koreans were forced to take Japanese names, etc).
QuixoticDino t1_iw9k1a1 wrote
Reply to comment by yogopig in South Korea, Japan seek better 'ties' amid North Korea missile tensions by Srishanvi
In addition to the war crimes others mentioned, Korea was also under imperial Japanese rule for a number of years, during which they were generally oppressed and attempts were made to attack Korean culture (e.g. the Korean language was banned, Korean cultural artifacts were taken from the country, Koreans were forced to take Japanese names, etc).