Canadian government officials will not attend the ribbon-cutting ceremony for the Gordie Howe International Bridge next week, Ottawa confirmed Tuesday.
The decision comes in direct response to trade actions threatened by the United States, marking a sharp deterioration in bilateral relations at a moment when the two nations are celebrating a major infrastructure link between Ontario and Michigan.
The boycott underscores how the dispute has moved beyond traditional economic metrics into broader geopolitical friction.
President Donald Trump recently announced new tariffs on Canadian imports, escalating a trade conflict that now includes environmental grievances.
The US administration has cited Canada's failure to contain wildfires, whose smoke has drifted across the border and blanketed major US cities, as justification for the punitive measures.
This diplomatic standoff adds a layer of political risk to North American trade flows.