U.S. Marines with 1st Combat Engineer Battalion, 1st Marine Division, reinforce the southern border protective barrier near San Ysidro, Calif., Jan. 25, 2025. U.S. Northern Command is working together with the Department of Homeland Security with the emplacement of temporary physical barriers to add additional security that will curtail illegal border crossings.
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(Footage provided by Staff Sgt. Luc Boatman)