DOD Support to the Southern Border

Air Force Gen. Gregory Guillot, left, commander of U.S. Northern Command and North American Aerospace Defense Command, presents a challenge coin to Navy Petty Officer 3rd Class Leonardo Angula aboard the USS Spruance at Naval Base San Diego, July 2, 2025. U.S. Northern Command is working with the Department of Homeland Security to provide military forces and capabilities along the southern border.

Marines install additional security obstacles to the southern border barrier near Campo, Calif., July 1, 2025. Joint Task Force Southern Border is working with U.S. Customs and Border Protection to protect the territorial integrity of the United States.

Army Pfc. Ramirio Razios, left, and Spc. Ethan Harrington, assigned to Joint Task Force Southern Border, conduct a patrol to prevent illegal activity near Bisbee, Ariz., June 30, 2025.

Army Spc. Samuel Valenzuela, left, and 1st Lt. Derek Smith perform a radio check near Bisbee, Ariz., June 30, 2025. The soldiers establish secure communications with U.S. Customs and Border Protection to report any illegal activity.

Army Staff Sgt. Casey Trosclair, left, and Sgt. Alex Romero mount a long-range surveillance system to its tripod near Santa Teresa, N.M., July 3, 2025. Soldiers assigned to Joint Task Force Southern Border are using the advanced scout surveillance system to protect the territorial integrity of the United States and prevent illegal activity.

Army Sgt. Alex Romero, assigned to Joint Task Force Southern Border, monitors the border with a long-range surveillance system near Santa Teresa, N.M., July 3, 2025.

Soldiers assigned to Joint Task Force Southern Border leave their vehicle to patrol along a protective barrier in Yuma, Ariz., June 27, 2025.

Army Pfc. Arturo Alarcron, assigned to Joint Task Force Southern Border, exits a CH-47 Chinook helicopter near Hereford, Ariz., June 28, 2025. Army air operations give soldiers access to remote areas inaccessible by U.S. Customs and Border Protection vehicles to monitor the border.

Soldiers in a Stryker armored vehicle patrol along the southern border near Bisbee, Ariz., June 29, 2025.

Army Sgt. Pablo Morales, assigned to Joint Task Force Southern Border, looks for illegal activity near Hereford, Ariz., June 28, 2025. Army air operations give soldiers access to remote areas inaccessible by U.S. Customs and Border Protection vehicles to monitor the border.

Army Sgt. Andrew Haddox, left, conducts a sling load demonstration for Maj. Gen. David W. Gardner at Fort Bliss, Texas, June 25, 2025. Soldiers assigned to Joint Task Force Southern Border are helping to seal the border and prevent illegal activity.

Army 1st Lt. Angelina Bebek aims an M4 rifle at a qualification range at Fort Huachuca, Ariz., June 26, 2025. Joint Task Force Southern Border is supporting U.S. Customs and Border Protection to secure the border and prevent illegal activity.

Soldiers assigned to the 4th Infantry Division test their shooting skills at an M4 qualification range at Fort Huachuca, Ariz., June 26, 2025. Joint Task Force Southern Border is supporting U.S. Customs and Border Protection to secure the border and prevent illegal activity.

Marines assigned to Task Force 51 arrive in Los Angeles, June 26, 2025. U.S. Northern Command is providing military forces to protect federal workers and property in the greater Los Angeles area.

Coast Guardsmen assigned to a Law Enforcement Detachment and sailors assigned to the USS Sampson conduct operations in the Pacific Ocean, June 22, 2025. The Sampson is employed under U.S. Northern Command's maritime homeland defense authorities to prevent illegal activity at the southern border.

Army Maj. Gen. Scott M. Sherman, commander of Task Force 51, visits troops and assesses operations with command leaders assigned to the 79th Infantry Brigade Combat Team and the 49th Military Police Brigade at Los Alamitos Joint Forces Training Base, Calif., June 25, 2025. U.S. Northern Command is providing military forces to protect federal workers and property in the greater Los Angeles area.

Soldiers stand guard outside the Wilshire Federal Building in Los Angeles, June 22, 2025. U.S. Northern Command is providing military forces to protect federal workers and property in the greater Los Angeles area.

Soldiers arrive at the Wilshire Federal Building in Los Angeles, June 22, 2025. U.S. Northern Command is providing military forces to protect federal workers and property in the greater Los Angeles area.

Marine Corps 2nd Lt. Kendall Payne welds a gate on a culvert near Otay Mesa, Calif., June 23, 2025. Marines and sailors assigned to I Marine Expeditionary Force are providing engineering support to Joint Task Force Southern Border by placing obstacles and additional security barriers to prevent illegal crossings.

A Border Patrol agent watches Marines place barbed wire on a border wall near San Ysidro, Calif., June 17, 2025. Marines and sailors are providing engineering support to Joint Task Force Southern Border to reduce illegal crossings.