The last-minute deal had echoes of Trump's first administration, when he threatened Mexico with tariffs and Sheinbaum's predecessor Andrés Manuel López Obrador defused the threat, sending thousands of troops under his newly created National Guard to deter migrants from crossing the border.

President Trump granted Mexico and Canada a 30-day reprieve on U.S. tariffs after both nations agreed to intensify efforts to block illicit drugs and migrants.

Mexico on Tuesday (Feb 4) began moving troops to its northern border as part of a 10,000-member deployment that President Claudia Sheinbaum promised US counterpart Donald Trump in exchange for a delay of his tariffs.