The U.S.-Canada relationship has hit its lowest point in decades, with President Trump imposing tariffs and threatening annexation. Prime Minister Mark Carney retaliated with tariffs on U.S. goods, escalating tensions. Historical disputes, like the 1927 War Plan Red, were never serious, but Trump's rhetoric has revived Canadian anxieties about American domination.

Experts like Robert Bothwell call this period unprecedented, as Trump's nationalist stance goes beyond economics to challenge Canada's sovereignty.