As soon as the sun glints over miles of border fence dividing the United States and Mexico, the engines of cargo trucks packed with auto and computer parts roar to life along border bridges and bleary-eyed workers file into factories to assemble a multitude of products geared toward the U.

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.