To pick up on a point that you mentioned, I'll say that I think that Canada actually has a lot that we can potentially draw on from on our American neighbours in Alaska, who have already fielded there—they're in a similar climate—a lot of the same capabilities that we're looking to acquire. I think there's a lot that we could draw on there.
The basic issue that we need to be aware of is this: Wherever you want to look at these potential threats on a map, because of the geography and transpolar routes, they're more likely to be presenting a military challenge to North America over the pole. It's the same reason that, when you fly east or west, you tend to go through parts of the Arctic. It's the same flight path that a missile would take, more or less, because it is faster and is a more direct route. Irrespective of what latitude most of China is on, if it wants to take military action towards North America, it is likely to come through the Arctic. The same thing applies to Russia.
Then, because their Arctic is important for the Russian economy—the Russians are really deploying a lot of assets there; they're making significant investments there—they've positioned there a lot of what are, for them, strategic forces that could be used anywhere in the world. They are just already positioned in their north, which further increases the likelihood that they might be used in a way that would come over the pole and, therefore, through Canadian Arctic territory.