Mr. Far,
Russia rules mineral resources up to 200 miles from their coast.
Russia rules the sea only up to 12 miles from their coast, in theory.
But with their rapidly expanding fleet of ice-breakers (40+ and some enormous nuclear-powered jobs in the works), their development of specialised military hardware for Arctic use, new Arctic military bases, the bet on fossil fuel and other minerals from the Arctic for economic survival, theory may give way to force.
ps: China financed a large lump of the Yamal developments to fill the gap when US sanctions blocked western financial institutions from providing the loot.
This is Geo-Politics - The Great Game, being played out in the Arctic. Peace has little to do with it. The Stockholm International Peace Research Institute is, in my opinion, being naive.