As Donald Trump unleashes round two of his trade wars, an analysis of the way global commerce has rewired since his first presidency shows how Vietnam, Mexico and Canada are exposed this time around as a new era of American protectionism unfolds.

President Trump had previously imposed an additional 10% tariff on all Chinese imports, resulting in retaliatory tariffs from China.

U.S. President Donald Trump signaled the possibility of a trade deal with China, despite escalating tensions over tariffs. Speaking aboard Air Force One on Wednesday, Trump said a new agreement with Beijing was