Interesting that the US and Russia get so close to touching and yet I don't see any cables going between the two countries. All our west coast cables seem to go south to Japan/China/Australia.
Admittedly, it's probably much easier to go through China, Korea, or Japan if those countries are accepting. There's decades of political and social issues to wade through with Russia / US cables, vs just going to China, Korea, or Japan, and then jumping over the Pacific. Canada would likely also be an easier possibility.
Which is pretty much what it looks like Russia did with the Hokkaido-Sakhalin Cable System[4], and Russia-Japan Cable Network.[5]
[1] https://en.wikipedia.org/wiki/Khabarovsk
[2] https://en.wikipedia.org/wiki/Vladivostok
[3] https://en.wikipedia.org/wiki/Yakutsk
[4] https://www.submarinecablemap.com/submarine-cable/hokkaido-s...
[5] https://www.submarinecablemap.com/submarine-cable/russia-jap...