Overview

• President Trump issued a memorandum directing the military to assume jurisdiction over the Roosevelt Reservation, a narrow federal land strip along the US-Mexico border.
• The directive tasks the military with building border barriers and deploying detection and monitoring equipment in designated areas.
• The memorandum seeks to bypass the 1878 Posse Comitatus Act by redefining the strip as a military installation, allowing the military to detain migrants crossing into the area.
• Implementation will begin in limited sectors, with an evaluation of the initial phase planned within 45 days and potential for broader expansion.
• The move has sparked legal and logistical debates over the military's expanded role in civilian immigration enforcement.