You are forgetting that Russia and the US already have territorial conflicts in the Artic, because both claim most of the sea for themselves, and that neither country wants the oil reserves in the hands of the other.
If Trump controlled Canada and Greenland it would bolster the US claim and make it viable for the US to enforce it.
As for China, they benefit from a trade route being divided between several countries, as it’s more likely that the international community will end up pressuring Canada to accept an international strait regime if the entire sea is not in the hands of the US.
Lol, Russia wants him to do this. Both to foment discontent and to alter the Arctic shipping routes.
You are forgetting that Russia and the US already have territorial conflicts in the Artic, because both claim most of the sea for themselves, and that neither country wants the oil reserves in the hands of the other.
If Trump controlled Canada and Greenland it would bolster the US claim and make it viable for the US to enforce it.
As for China, they benefit from a trade route being divided between several countries, as it’s more likely that the international community will end up pressuring Canada to accept an international strait regime if the entire sea is not in the hands of the US.