While Donald Trump was threatening comprehensive tariffs against Canada, his administration issued an ultimatum that crossed a line no sovereign nation could accept. The demand: Canada must sell critical natural resources to American companies at below-market prices—or face economic destruction. Canada's response shocked Washington. They didn't impose retaliatory tariffs. They didn't ban exports. They did something far more devastating. They quietly withdrew from voluntary supply chain coordination agreements that have kept North American manufacturing running seamlessly for seventy years. This isn't a trade dispute. This is the systematic collapse of the most integrated production ecosystem on Earth—and it's happening in real time.