On a Hike From left, Marine Corps Cpl. Manuel Cruz, Lance Cpl. Blake Welch and Cpl. William Cordero, all assigned to Joint Task Force Southern Border, hike to place National Defense Area signs near the border barrier in Yuma, Ariz., July 31, 2025. SHARE: Download: Full Size (14.39 MB) Tags: Marine Corps, Border Support Credit: Marine Corps Sgt. Mary Torres VIRIN: 250731-M-HP122-1043.JPG Photo Gallery