Rather than answer that question the idea of recruiting non citizens into the forces is gaining some momentum. It works very well and many countries do it and always have. I was considering joining the Aussie air force at one point in the early 1990s. They were offering some good incentive to foreigners who were trained in certain areas and it was tempting.
IN Canada's case it is interesting that they have trouble recruiting in a economy where they should be flush with personnel. Why are they struggling?
Why are still at something like 16% female?
8% vis minority?
It is obvious that the military has not transformed itself for this century.
I would support foreign recruits. It would help and allow the mismanagement to continue unabated.