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.

A line of Mexican National Guard and Army trucks rumbled along the border separating Ciudad Juárez and El Paso, Texas.

Around 1,650 troops from Mexico's National Guard arrived in Juárez, Mexico on Tuesday as part of 10,000 troops sent to reinforce the southern border.

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.