Joint Task Force Marks One Year Bolstering Yuma Border Security

Maj. Gen. David Gardner, commanding general of Joint Task Force–Southern Border and the 101st Airborne Division (Air Assault), marked the task force's one-year anniversary March 14 with a direct assessment of what a year of military-civilian coordination has produced along the Yuma sector: a 32-mile National Defense Area carved out of remote desert, more than 300 boundary signs placed by Marines and soldiers, and a Border Patrol freed up to chase broader enforcement targets nationwide.

The National Defense Area, the fourth such defense zone established along the border under the Trump administration, stretches through terrain near the Cabeza Prieta National Wildlife Refuge and the Barry M. Goldwater Range. Military crews placed the signs to mark the boundary and warn the public that entry is not allowed. The NDA designation also grants soldiers the authority to detain anyone who crosses the border illegally until Border Patrol agents arrive, and that authority extends to hikers or recreationists who wander into the zone.

For Yuma Sector Border Patrol, the practical effect has been operational flexibility. "Part of the force multiplier of this is that it does allow border patrol to be able to devote time to other missions like 'Operation at Large,' which is an ICE operation throughout the United States," said Michael Wisniewski, Assistant Chief Patrol Agent with Border Patrol's Yuma Sector.

JTF–Southern Border operates under U.S. Northern Command and provides Department of Defense support to the Department of Homeland Security. During its first year, the task force's activities in Yuma included engineering and infrastructure support to Customs and Border Protection, sign emplacement across the NDA by both Marines and soldiers, maritime operations support, and long-range detection capability deployed by cavalry scouts.

Gardner described the results as proof of a coordinated model. "During this first year, Joint Task Force-Southern Border and partners have proven what a whole-of-government approach to our Nation's southern border can accomplish," he said. "While the environment is complex, our mission is clear: to secure the homeland with precision, professionalism, and respect for the rule of law."

The Yuma NDA is not without legal risk. Similar defense zones in Texas and New Mexico have faced court challenges, with judges in some cases dismissing charges after ruling that the posted signs did not provide the public with sufficient warning. As JTF–Southern Border enters its second year, the task force has stated its focus will be on expanding data-driven operations and deepening integration with CBP and other partner agencies.