U.S. officials say the Pentagon will begin deploying as many as 1,500 active duty troops to help secure the southern border in the coming days.

It followed threats by Trump to levy import taxes of 25% on Mexico and Canada, accusing them of allowing undocumented migrants and drugs to come into America. Though he did not mention the US by name, the Vice Premier of China on Tuesday said his country was looking for a "win-win" solution to trade tensions and wanted to expand its imports.

Troops have assisted at the border before and will be limited to support roles unless the administration invokes the Insurrection Act.

President Claudia Sheinbaum responded point by point to President Trump’s executive orders on migration, trade and other issues.

Canadian Prime Minister Justin Trudeau and Mexican President Claudia Sheinbaum on Tuesday (January 21) said their governments were ready to defend their countries' interests against U.S. President Donald Trump's tariff threats.

President Trump is using the threat of stiff tariffs on goods from Canada and Mexico to pressure the two nations to start renegotiating a continental trade deal.