[alberto_ol]

According to wikipedia "Japan and the Soviet Union ended their formal state of war with the Soviet–Japanese Joint Declaration of 1956 but did not sign a peace treaty."

https://en.wikipedia.org/wiki/Kuril_Islands_dispute

https://en.wikipedia.org/wiki/Soviet%E2%80%93Japanese_Joint_...

[UnfitFootprint]

I would so love to visit, but I read an increase in tensions a few years ago caused a tourism stoppage