Rio Grande City, Texas – On May 5, 2025, U.S. Soldiers from Headquarters and Headquarters Battery, 10th Mountain Division Artillery, 10th Mountain Division, conducted routine maintenance on an AN/MPQ-64 Sentinel radar system.

The soldiers are assigned to Joint Task Force Southern Border. The system is used for early warning, detection, and location of unmanned aerial surveillance and parcel drones approaching the southern border.

Joint Task Force Southern Border operates under U.S. Northern Command. It coordinates efforts to secure the border and prevent illegal activity through agile and multi-domain operations.

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