This is actually a bigger deal than you think. This is Canada solidifying its position as a reliable defence partner in the newly-forming European power structure left by America's exit. We need to do more, and we need to bolster our own forces and start producing our own arms and arms for Europe, but this is a start. Helping Europe secure peace will keep Canada on the table as a serious ally.

For those that think this is leaving us vulnerable to the US: We already are. If the US wanted to invade then they could do it easily even with our full fighting force present. It would be ruinous for the US economy and cause extreme civil unrest (potentially open revolt) so they're not likely to do it, though. Economic pressure is the name of their game right now.