The Trump administration is making enhancements to a virtual wall on the southern border in the form of drones that will be able to detect and take down other drones used to smuggle drugs into the United States or spy on agents on patrol.

U.S. Custom and Border Protection, the Department of Homeland Security agency responsible for all trade and travel at the border, awarded in late September a $1.2 million contract for six of Citadel Defense Company’s Titan V3 Drone, a 20-pound device capable of taking control of other drones by sending a signal through the airwaves. Private sector drone leaders have said their technology has barely seen any action despite border officials’ concerns about suspicious drones flying into the country, even as the Trump administration has forked up billions for a physical border fence.