U.S. Marines with Combat Logistics Battalion 7, 1st Marine Logistics Group, assigned to Joint Task Force-Southern Border, weld prefabricated brackets and secure concertina wire during barrier reinforcement operations in Nogales, Ariz., April 13, 2026. The operations are part of ongoing efforts to enhance security along the U.S.-Mexico border. U.S. Northern Command is working side-by-side with the Department of Homeland Security and the U.S. Customs and Border Protection within narrowly defined authorities to provide unique military capabilities to protect the territorial integrity of the U.S. southern border. (Dept. of War video by U.S. Marine Corps Cpl. Alan Gomez)
FORT HUACHUCA, Ariz.—Joint Task Force–Southern Border (JTF-SB) marks its one-year anniversary, March 14, 2026. This milestone highlights JTF-SB's first 365 days of executing agile, full-scale, and partner-focused missions in support of the Department of Homeland Security’s (DHS) southern border mission.