Never would've thought Russia has a dispute over land with Japan as well but oh well - there's never too much land for them, I guess.
On March 21, 2022 Russia announced its withdrawal from peace treaty
talks with Japan and freeze of joint economic projects related to the
disputed Kuril islands due to sanctions imposed by Japan over
Ukraine.[68]
Never would've thought Russia has a dispute over land with Japan as well but oh well - there's never too much land for them, I guess.
https://en.wikipedia.org/wiki/Kuril_Islands_dispute