Trucks cross the Gordie Howe International bridge that connects Windsor, Ontario and Detroit, Michigan on September 6, 2026. Canada announced on August 25, 2026 counter-tariffs on US goods ranging between 15 and 50 percent, intensifying the trade war between the historically close allies. Ottawa's retaliation will take effect September 8, a timeframe earlier outlined by Prime Minister Mark Carney after US President Donald Trump's 50-percent duties came into place August 22, 2026. (Photo by JEFF KOWALSKY / AFP via Getty Images)