Concertina Wire Marines assigned to 1st Combat Engineer Battalion, 1st Marine Division, deploy concertina wire along the southern border wall near San Ysidro, Calif., Feb. 3, 2025. SHARE: Download: Full Size (1.6 MB) Tags: Defense Secretary, Marine Corps, Border Support, hegseth Credit: Marine Corps Lance Cpl. Caleb Goodwin VIRIN: 250203-M-GL456-1220.JPG Photo Gallery