There are different levels to that question.
Taking your last point, I think that Canada is uniquely placed to communicate well with the allies in part on linguistic grounds but also because of a long history in peacekeeping. Where I do see a problem with communication across different types of troops, it tends to be a linguistic one, so I would say that Canada is very well placed.
In terms of your level of trust with your allies, I don't think I can answer that. That's a question about your national policy and theirs. But—