Tariffs would cripple Mexican border economies that are reliant on factories churning out products for the US and likely thrust the country into a recession, economic forecasters have warned.

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Trump has also threatened to introduce tariffs - a tax on imports - on goods from Canada and Mexico, but paused these for 30 days after both countries agreed to boost border security. The US president has said tariffs are needed to help the American economy and to "protect" the country from the "major threat of illegal aliens and deadly drugs".

STORY: Mexican soldiers were mobilized to the U.S. border on Tuesday to crack down on fentanyl trafficking.It's part of a deal between U.S. President Donald Trump and Mexico’s leader Claudia Sheinbaum to pause his threat of tariffs for a month.