US President Donald Trump has signed an executive order directing federal agencies to refer to Lake Ontario as "Lake America" on all official US maps and documents. The announcement, made from the Oval Office on Thursday, comes as trade negotiations between Washington and Ottawa collapse, prompting new tariffs on billions of dollars of Canadian goods.
The order applies only within the United States, meaning Canada is under no obligation to adopt the new name. Still, the gesture carries symbolic weight, echoing Trump's earlier decision to rename the Gulf of Mexico as the "Gulf of America" — a move that drew sharp criticism from Mexico and international geographers.
During the signing ceremony, a large map of the Great Lakes was displayed behind the Resolute Desk, with the words "Lake America" emblazoned in red across the lake's expanse. Trump told reporters that Canada was "the worst" country to deal with on trade, adding: "They think they are entitled to everything and we cannot allow it."
Trade dispute deepens
The renaming comes amid a sharp escalation in the trade conflict between the two neighbours. The United States has announced 50% tariffs on approximately $20 billion (€17.17 billion) worth of Canadian imports, following the breakdown of negotiations over issues ranging from dairy quotas to digital services taxes. Canadian officials have vowed to retaliate with counter-tariffs on US goods, raising fears of a broader North American trade war.
Trump has repeatedly pressured Canada since returning to the White House, floating the idea of making the country the 51st US state — a notion that Canadian Prime Minister Mark Carney has dismissed as unserious. The president's rhetoric has unsettled European allies, who watch the dispute for its potential impact on global supply chains and transatlantic trade norms.
For Europeans, the spat is more than a distant curiosity. Canada is a key partner for the EU, with the Comprehensive Economic and Trade Agreement (CETA) facilitating billions in annual trade. Any disruption to North American trade could ripple through European markets, particularly in sectors like automotive manufacturing and agriculture, where Canadian and US supply chains are deeply intertwined.
Analysts in Brussels note that Trump's aggressive posture toward Ottawa mirrors his approach to the EU, which he has threatened with tariffs on European cars and other goods. The European Commission's warnings about trade imbalances with major partners reflect a growing concern that Washington's unilateral tactics could become a template for dealing with Europe.
The renaming of Lake Ontario is unlikely to have any practical effect on navigation or international law. The lake is shared by the US and Canada, and its name is recognized by the International Hydrographic Organization. But the gesture underscores the personal nature of Trump's grievances with Canada, which he has often described as taking advantage of US generosity on trade and defence.
Canadian officials have responded with a mix of ridicule and resolve. Foreign Minister Mélanie Joly called the move "a distraction from real issues," while trade minister Mary Ng reiterated that Canada would not be intimidated. The dispute has also drawn attention to the broader fragility of US-Canada relations, long considered among the most stable in the world.
For European observers, the episode serves as a reminder of the unpredictability of US foreign policy under Trump. As the EU navigates its own trade negotiations with Washington, the Lake Ontario affair offers a cautionary tale about the president's willingness to use symbolic gestures to apply pressure. Whether it will lead to concrete concessions from Ottawa remains unclear, but the theatrical nature of the announcement suggests that the trade war is as much about political posturing as about economic leverage.
