It would depend a little on what those countries were doing. If it was a demonstration of their capability, it would show that if their intent were to change, they would have the capability to act accordingly. To that extent, it would be a warning to us.
However, let us not forget that Russia itself owns a large part of the Arctic. So it has rights and interests in the Arctic also and it can act within its own maritime jurisdiction. It seems reasonable to us that it would build bases and enhance its capability to monitor its own passage. It is doing that for its search and rescue operations within its own jurisdiction, or to monitor maritime trade going on there. We do not see that as a threat.