Although markets are trying to shrug off the week's U.S. tariff threats as yet another negotiation tactic, there's growing unease at the daily barrage, the latest being a 35% tariff on Canadian goods and higher levies on other countries.

The U.S. has sanctioned Myanmar's military junta and refused to acknowledge its rule, so Mr. Trump's personal letter to its leader was welcomed, despite the subject.

President Trump warns Canadian Prime Minister Mark Carney of a new 35% tariff on Canadian imports if the country doesn't address fentanyl trafficking and existing trade disputes.

The president was following through on an earlier statement that he would target a key metal used for semiconductors, lithium-ion batteries and more.

Marco Rubio meets with Russian foreign minister amid tensions over Ukraine and Trump releases tariff letters to trading partners.

The yen, for its part, has been steadily weakening as the prospects dim for a U.S.-Japan trade deal. The dollar was up 0.6% on Friday at 147.12 yen and is headed for a weekly gain of 1.7%, the biggest this year. On the crosses, the yen is down for a seventh straight week on the euro and hit a five-month low on the Australian dollar .

U.S. President Donald Trump said on Thursday the United States would impose a 35% tariff on imports from Canada next month and planned to impose blanket tariffs of 15% or 20% on most other trading partners.

President Donald Trump's administration says higher rates will go into effect Aug. 1. Here's where trade negotiations stand.

President Donald Trump’s tariff fight moved forward yesterday as he escalated the U.S. trade war with Canada and said in an exclusive interview that he plans to impose blanket tariffs on most trade partners.