One human smuggler who spoke to NBC News said the troops wouldn’t make a difference, but conceded stricter border policies had significantly cut into his business.

Brazilian steelmaker Gerdau may opt to bump up its output capacity in the United States instead of building a new plant in Mexico, its CEO said on Thursday, as tariffs implemented by President Donald Trump shake up global trade.

The White House published three separate Executive Orders that imposed blanket tariffs on Canadian, Mexican and Chinese imports. The Executive Orders are all similar in scope, with each having a unique justification for imposing the associated tariffs.

Brazil and Mexico, two top shippers of steel to the U.S., will wait to see if U.S. President Donald Trump announces tariffs on steel and aluminum imports before reacting, officials from both nations said on Monday.

Mexico boosted troop levels at the border after President Trump threatened a tariff on all Mexican goods coming into the U.S. Gabe Gutierrez got exclusive access, and takes a look at whether or not the uptick in troops will impact the flow of illegal immigration and fentanyl into the U.

The leaders of Mexico and Canada have been willing to appease U.S. President Donald Trump to avoid tariffs on their products.