[travisb]

How would it be breaking international law? Who would enforce it? Would the US stop trading with Canada because Canada nullified some treaties with a third party (ie. not the USA)? Would Germany invade Canada?

Treaties are just agreements and are broken all the time; for an obvious example look at trade treaties or weapons treaties. In the Canadian context the constitution states that Canada must maintain those existing treaties with Aboriginal tribes, but constitutions are changeable. Every other treaty is a mere act of Government away from nullification.

[philistine]

The whole current recounciliation is based on the premise that we will respect the treaties we didn’t in the past. Courts literally limited what was written in them in the past, in blatant disregard of common law.

You want to go in the direction of breaking them again, and making Canada look like a fool on the international stage.