I'll jump into the fray.
For years in NATO discussions there was debate over what collective balanced forces meant, and NATO policy had been for years that every nation's responsible for ensuring they have a collective balanced force. Every country kind of iterates how they answer that question differently.
For many years Canada's response was largely we will provide what we provide and fit into a bunch of other resources that others have. I think the operational experience of 15 years is that we need a much more robust internally complete force structure so that we have the command and control, we have much of the intelligence, we have the very esoteric human intelligence types of resources that in the 1960s and 1970s we could rely on other parts of NATO to provide. We need those domestically.