Japan is creating conflict between Russia and Korea by stating in the Defense of Japan White Paper that Kuril Islands, and Dokdo is Japanese territory. When Putin visited Kuril islands, the Japanese merely expressed its regrets, but when the Korean president was visiting Dokdo, they requested refrainment of the visit and delivered complaints through the Korean ambassador. I don't understand why Japan is making a fuss about a Korean going to a Korean island.
Japan is arguing and insisting on having their own way stating that Russian land is theirs, and Korean land is theirs. Against a immature crybaby like Japan, we need to react strongly like China and Russia.