North Pole wasn't Russian you mean?...
Every map in Soviet times had a line of "border of USSR Arctic posessions". It included North Pole.
I thought that we own seabed there because all Arctic islands in that sector belong to Russia.
We have scientific stations and civilian airport on North Pole for decades now (first North Pole Station was working 70 years ago). Russia is the only country that is able to send surface ships to North Pole. So you can argue as much as you want, it's ours de-facto.