Maybe General Loos will have something to add.
From a Canadian joint operations perspective, we are monitoring all threats to North America. At this time, we do not consider that the Russian activities along their northern slope constitute a military threat that we need to address.
We are not complacent about that, nor are we naive about that. We continue to monitor this closely, but we do not consider that to date to be a military threat.
General Parent would be another good person to pose that question to, with respect to the air activity that occurs, but certainly the activity we're watching on the Arctic archipelago of Russia, which, perhaps, you're characterizing as an arms buildup, does not constitute a threat to continental defence.