If I could say this briefly, the big dynamic that is going to happen.... Only the Americans, the Taiwanese and maybe the Japanese and the Australians will be able to meaningfully contribute to the most pressing scenario in the Pacific, which is Taiwan. I don't think there's a realistic prospect of Canada making a material contribution. That's not disrespect; it's just a practical reality.
There is going to be more of a vacuum in Europe. Canada has a long-established position there and worked with NATO during the Cold War. It seems that there is both need and capacity. Maybe that is the most efficient allocation, along with the Arctic, which is natural in the sense that it's probably better to work with the grain of past practice on the whole, especially as we swing increasingly towards the Pacific.