Overview

• The Yuma National Defense Area took effect on August 5, covering land adjacent to the Barry Goldwater Air Force Range between Sonoyta, Sonora, and Lukeville, Arizona.
• Joint Task Force South, supported by the Department of Homeland Security, has begun patrols, temporary detentions and barrier enhancements within the new zone.
• The military designation allows armed forces to operate on civilian and federal lands under military authority without a state of emergency or special mobilization.
• Yuma’s activation follows earlier NDAs launched in April 2025 in New Mexico and Texas under US Northern Command.
• Civil society organizations warn that the newly classified military zones lack clear civilian oversight and pose legal and human rights risks.