Northern Territories Day commemorates the treaty signed between Japan and Russia on February 7, 1855, making the four northern islands part of Japan's territory. Former island residents gathered in Rausu Town, Hokkaido, and appealed for the early return of the Northern Territories as the sun rose from the direction of Kunashir Island.

The Russian Ministry of Justice announced on the 6th that it has designated a Japanese organization that continues to campaign for the return as an "undesirable organization"