Determined Trek Marines assigned to Joint Task Force Southern Border move to pre-identified grid locations in the Yuma National Defense Area during a signage emplacement mission in Yuma, Ariz., Aug. 9, 2025. SHARE: Download: Full Size (10.52 MB) Tags: Border Support Credit: Marine Corps Sgt. Mary Torres VIRIN: 250809-M-HP122-1206.JPG Photo Gallery