Why Should Russia Give Up the Kural Islands?

After Russian invasion of Ukraine, the Japanese have been upping the ante and making these noises that Kural Islands is a dispiratory and we want it back. India's stance should be it's not our concern. It's not our business. Both nations should find a peaceful resolution to the debate, to the issue. No war, please don't go to war. This is not an era for war," he said.