Honestly in political terms saying you’ll join at some undefined point in the future is not saying anything. That will be an entire new government who may or may not agree with it. Besides like another commenter said, everything about the EU is negotiable.

I was thinking maybe the problems with Canada would be more in matters of regulation voting, not so much wars or foreign policy. Canada has a different mindset, not exactly like Americans but in the same thought space, possibly due to their shared origins as an European colony with a vast continent to expand to and also because of US influence. Canadians just don’t like restrictive regulations. One could argue that equally as important as avoidance of wars and directly correlated is the regulation of commerce, seeing as the EU officially started as a coal and steel regulatory trade international organ. I imagine such a large body of population would clash with certain regulations we have in the EU, but nothing that couldn’t be worked out.

But organizations like the EU live and die on trade and that’s why i ultimately i don’t see why Canada should try for the EU, despite me thinking they would be welcome. It’s why i think the commonwealth is kind of useless nowadays as an economic tool. Their primary body of trade is the Americas, with Asia and Europe being secondary markets. Too bad the US is too far up its own back to cooperate with anyone without ruining it with greed. In an equal partnership of open borders and free trade, US, Mexico and Canada would be huge.