Hundreds gathered in a park to mark the day when a mayor from Japan’s northernmost Hokkaido island petitioned for the handover of the islets shortly after WWII ended, the NHK broadcaster said.
The Japanese outlet cited a former settler, Hirotoshi Kawata, who said that island residents were getting old and a solution needed to be found fast.
The contested islands – known as Kunashir, Iturup, Shikotan and the Habomai in Russia — are located off the southern tip of Russia’s the Kamchatka Peninsula.
Russia insists that the islands were transferred to the Soviet Union after the end of the Second World War and have been an integral part of Russia ever since. Japan maintains that the four islands still belong to Japan under the 1855 Treaty of Shimoda which placed them under Japanese rule.
The long-standing territorial dispute has been a major setback for Russian-Japanese economic and political cooperation.