A line of Mexican National Guard and Army trucks are rumbling along the border separating Ciudad Juárez and El Paso, Texas, among the first of 10,000 troops Mexico has sent to its northern frontier following tariff threats by President Donald Trump.

Masked and armed National Guard members were seen scouring the brush along the border, retrieving makeshift ladders and ropes concealed in the trenches before loading them onto trucks. Patrols were also conducted in other parts of the border near Tijuana.