Considering the amount of spending it would take for Canada to defend itself to the same level as the US, I think it's quite a clever decision on their part. Taking into account nobody has ever attacked Canada or would want to!

Canada have it made. If the Ruskies or China attacked them, the US would step in to prevent them from hopping the border into the US. Those are after all the only 2 realistic threats to Canada. They don't need a huge military - because the US has one.

I think Canada actually have this right, rather than it being a negative thing.