From left, U.S. Marine Corps Cpl. Nathan Baptiste and Cpl. Jordan Medina, both with Combat Logistics Battalion 15, Combat Logistics Regiment 17, 1st Marine Logistics Group, assigned to Joint Task Force-Southern Border, complete emplacement of a Yuma National Defense Area sign during a signage emplacement mission in Yuma, Ariz., Sept. 24, 2025. JTF-SB executes full-scale, agile, and all-domain operations in support of U.S. Customs and Border Protection to protect the territorial integrity of the United States and achieve 100% operational control of the southern border. (U.S. Marine Corps photo by Sgt. Mary Torres)