Trump’s geopolitical aims, not economics, are behind his trade hostility towards Canada

A seismic shift in American geopolitics explains the breakdown in United States-Canada trade relations. Understanding U.S. security policy is critical as Canada faces stark choices. The Donald Trump administration’s 2025 National Security Strategy (NSS) appears to mark a sharp break in U.S. foreign policy. It explicitly rejects the U.S.-enforced, rules-based international order and liberalized trade regime that has guided American foreign policy since 1945. Venezuela attack, Greenland threats…