Transforming in Contact: Utilization of the multi-purpose company to curb illegal activity at the southern border

By Capt. Bailey BuhlerAugust 12, 2025

1-41 Infantry Battalion conducts air assault operations
U.S. Soldiers, from Charlie Company, 1st Battalion, 41st Infantry Regiment, assigned to Joint Task Force–Southern Border, standby at the extraction point as CH-47 Chinook helicopters arrive for pickup near Dona Ana, N.M., May 10, 2025. The air assault allows Soldiers to access an area where the rugged landscape restricts the effectiveness of standard ground patrols, enhancing their ability to carry out the mission. Under the direction of U.S. Northern Command, Joint Task Force–Southern Border aligns efforts to seal the southern border and repel illegal activity and is responsible for full-scale, agile, and all-domain operations, which will allow for more effective and efficient DoD operations. (Photo Credit: U.S. Army photo by Staff Sgt. Remoi Brown) VIEW ORIGINAL

FORT HUACHUCA, Ariz. — Upon notification of 2nd Stryker Brigade Combat Team, 4th Infantry Division’s deployment in support of Joint Task Force-Southern Border, Col. Hugh Jones, brigade commander, established two multi-purpose companies. These two companies — Charlie Company, 1st Battalion, 41st Infantry Regiment and Alpha Company, 1st Battalion, 12th Infantry Regiment — not only serve as JTF-SB’s reserve force, but also showcases the unit's ability to transform in contact while supporting the U.S. Border Patrol across the 1,954 miles of southern border.

Historic implementation of the MPC

The primary factor that delineates these MPCs from a traditional infantry company are their operational control of the brigades Cyber Electromagnetic Activities platoon and Chemical, Biological, Radiological, and Nuclear Reconnaissance Platoon.

“Attaching these additional capabilities coupled with our ability to infiltrate an area via multiple means helps us to coordinate across domains simultaneously,” said U.S. Army Capt. Benjamin Hale, commander of Charlie Company, 1st Battalion, 41st Infantry Regiment, “therefore, allowing us to build operational understanding quickly.”

Because of the companies’ rapid deployment fielding the necessary equipment to be a robust MPC has been challenging. The MPCs are prioritized in JTF-SB’s receipt of new equipment, including counter unmanned aircraft systems and modernization initiatives such as the Integrated Visual Augmentation System. JTF-SB is working diligently to create a robust feedback loop on new technology being utilized at the southern border, providing guidance for future fielding.

Implementation of the MPC at the southern border is both providing JTF-SB with a needed capability and proof of concept for utilization of a Stryker MPC in large-scale combat operations.

1-41 Infantry Battalion conducts air assault operations
U.S. Army Sgt.1st Class Russell Wyatt, an infantryman and platoon sergeant with 1st Platoon, Charlie Company, 1st Battalion, 41st Infantry Regiment, assigned to Joint Task Force-Southern Border, conducts a head count of Soldiers boarding a CH-47 Chinook helicopter for an air assault operation near Dona Ana, N.M., May 10, 2025. Sgt. 1st Class Wyatt carefully verifies each Soldier’s presence and readiness, coordinating with both the aircrew and ground units to ensure a seamless execution of the air assault operation. Under the direction of U.S. Northern Command, Joint Task Force–Southern Border aligns efforts to seal the southern border and repel illegal activity and is responsible for full-scale, agile, and all-domain operations, which will allow for more effective and efficient DoD operations. (Photo Credit: U.S. Army photo by Staff Sgt. Remoi Brown) VIEW ORIGINAL
Data driven capability emplacement

JTF-SB’s area of responsibility spans the entire 1,954-mile southern border. Three subordinate brigades, 89th Military Police Brigade, 2nd Stryker Brigade Combat Team and 90th Sustainment Brigade, are responsible for executing enhanced detection and monitoring operations in support of U.S. Customs and Border Protection.

Finite resources require strategic placement of military capabilities. Analysis of both military detections and CBP apprehensions is used to allocate resources to where anticipated crossings will occur.

“2nd Stryker Brigade Combat Team is responsible for 1,044 miles of border. With approximately 2,300 Soldiers, we have one Soldier per half mile of border.” said Jones, “When accounting for proper work-rest cycles and the personnel necessary to sustain detection and monitoring operations, the distance per Soldier becomes even larger.”

Correct implementation of these capabilities enables CBP to funnel illegal activity into zones and corridors where U.S. Border Patrol is staged to conduct law enforcement activities and therefore reduce illegal aliens from unlawfully entering the United States.

1-41 Infantry Regiment use Stryker armored vehicles to help support southern border mission
U.S. Army Sgt. Colton Baird, assigned to Charlie Company, 1st Battalion, 41st Infantry Regiment, 2nd Stryker Brigade Combat Team, 4th Infantry Division assists with manning a Stryker armored vehicle at Falcon Heights, Texas, June 12, 2025. The company began conducting operations in Rio Grande City to help curb illegal crossings where U.S. Border Patrol reported an influx of illegal activity. Under the direction of U.S. Northern Command, Joint Task Force–Southern Border aligns efforts to seal the southern border and repel illegal activity and is responsible for full-scale, agile, and all-domain operations, which will allow for more effective and efficient DoD operations. (Photo Credit: U.S. Army photo by Pfc. Sean Hoch) VIEW ORIGINAL
MPC effect on illegal activity at the southern border

Activity at the border is constantly shifting as malign actors adapt to the posture of CBP and military forces. As CBP tracks these activity patterns, they request repositioning to their military counterpart. In instances where the ground force brigade identifies a need for increased resources, JTF-SB can surge an MPC.

CBP organizes their force by geographical location. Across the southern border, there are nine CBP sectors, which are further broken down by station. Having military forces that can bridge operations between sectors helps reduce operational gaps. Additionally, the ability to flex forces quickly as patterns are identified is a vital capability.

The goal of the MPC is to rapidly deploy to curb the current illegal activity. After the companies’ initial assessment and action, a solution is then returned to the brigade responsible for the area to continue operations. MPCs’ combine brigade enablers with a maneuver element, which creates a company level fusion cell, capable of expediting the military decision-making process.

The first operational mission of an MPC at the southern border was to provide additional detection and monitoring capabilities via Stryker armored vehicles to support the El Paso Sector and 2nd Stryker Brigade Combat Team. Follow-on missions for the MPCs’ included an air assault and dismounted patrol mission near Nogales, Arizona. Stryker integration in support of 90th Sustainment Brigade in Laredo, Texas and establishment of listening posts/observation posts (LP/OP) in the Otay Mountains near San Diego, California.

SD Engages with Troops and Border Officials at New Mexico Defense Area
Secretary of Defense Pete Hegseth receives a coin from a Soldier while visiting the New Mexico National Defense Area to assess its role in the operational control of the U.S.-Mexico border, Santa Teresa, N.M., April 25, 2025. (Photo Credit: DOD photo by U.S. Navy Petty Officer 1st Class Alexander Kubitza) VIEW ORIGINAL

The benefits of MPC’s are multifaceted, significantly enhancing the capabilities of JTF-SB. Their versatile structure enables JTF-SB to adapt quickly to emergent threats and a rapidly evolving operational environment, ensuring agile and effective responses across the southern border. Furthermore, these MPCs serve as a model for the broader Army, showcasing how a Stryker Brigade Combat Team can be employed in LSCO.