Trump Administration Increases Military Presence At US-Mexico Border

The Pentagon is expanding its presence at the southern border with a fresh deployment of troops and armored vehicles aimed at tightening security. Defense Secretary Pete Hegseth authorized the move Friday — sending up to 3,000 active-duty personnel to assist with border enforcement efforts.

The deployment includes a Stryker Brigade Combat Team from Fort Carson, Colorado, and an aviation battalion that will support monitoring and transportation operations. These forces will work alongside thousands of National Guard and Reserve troops already in place — continuing efforts to prevent illegal crossings and maintain territorial integrity.

January saw an earlier military reinforcement when 1,500 active-duty troops were sent to the border. These forces were tasked with expanding security operations that had already been underway with National Guard personnel stationed in the region. Officials say this latest increase will provide additional resources and manpower where needed.

Part of the plan involves deploying Stryker combat vehicles — known for their speed and defensive capabilities. The military is transporting these armored units by rail and truck — with Arizona set to receive a significant portion of the reinforcements. Commanders see their deployment as a means of strengthening rapid-response capabilities along the border.

In Mexico, the government of President Claudia Sheinbaum has directed National Guard forces to patrol sections of the border — particularly in Tijuana. This move is tied to ongoing policy discussions between Mexico and the Trump administration — with border enforcement remaining a focal point.

Military officials anticipate the latest troop movement will begin within weeks — ensuring a continuous presence along key border areas.