Russia doesn't really have the capabilities. 70m isn't that deep and the Danes have advanced SONAR that they bought off the US that would detect Russian submarines operating in the area. Anyone operating in the area would need to have a reason to be there, which the US has had.
Russia doesn't really have the capabilities. 70m isn't that deep and the Danes have advanced SONAR that they bought off the US that would detect Russian submarines operating in the area. Anyone operating in the area would need to have a reason to be there, which the US has had.