If America didn't practice restraint with regard to Canada, let's say cut off all diplomatic and economic ties, it would hurt for a while. Consumer prices would rise, there'd be a significant uptick to inflation, the expense of building housing would increase, the international community would be pissed off and sentiment against American would be at an all-time high, European, Asian and South American countries would form new trading blocs to leave America out, etc...
It would be pretty bad.
If Canada did that, 3 months later there would be no country left to call Canada. The EU and East Asia would be sending relief aid in the form of peace-keepers, heating fuel & emergency power generators, antibiotics and food rations in a humanitarian gesture to save what's left of what was Canada.
It would be pretty bad.
If Canada did that, 3 months later there would be no country left to call Canada. The EU and East Asia would be sending relief aid in the form of peace-keepers, heating fuel & emergency power generators, antibiotics and food rations in a humanitarian gesture to save what's left of what was Canada.