BBC reporters in the US, Canada and Mexico assess the fallout after Trump gets border promises in return for a 30-day pause on tariffs.

Trump's tariffs on Canada, Mexico and China suggest he is willing to risk a global trade war. The main thing that could stop him would be a stock market selloff.

These aren’t tariffs, they’re taxes, in this case, trade taxes. And these trade taxes aren’t going to be paid by China or Canada. They will be paid by American companies—like Walmart, which imports apparel,

The president’s trade assault, which makes no distinction between ally and adversary, is an assertion of U.S. dominance with significant risks.

Donald Trump made good on his promise to impose trade barriers on key US trading partners. Citing the influx of narcotics and “illegal aliens,” the president announced a 25 percent tariff on goods from Mexico and Canada (with a 10 percent carve-out for Canadian energy imports),