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The Department of Homeland Security issued a stark warning after more than 300 cartel drones were detected along the southern border in just over a month.
According to the Department of War, 378 cartel drones were detected at the southern border between Aug. 22 and Thursday. Of those, 75 drones were turned back, 15 were engaged and one was captured. Fox News Digital previously reported that the War Department’s Joint Task Force – Southern Border took down “approximately” 100 suspected cartel drones in August alone.
In response to the threat, the Department of War and DHS are increasing their use of drone detection and interception tools along the southern border. The agencies are also working with private companies to develop technology to counter the increased presence of cartel drones.
In a statement posted on X, DHS wrote that “hostile surveillance of American personnel ends here.”
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Right, Army Sgt. Drew Scheffer, assigned to Joint Task Force Southern Border, provides surveillance over the southern border near Santa Teresa, N.M., on April 12. The military has been patrolling the southern border as part of the Trump administration’s crackdown on illegal migration. (iStock; Department of Defense)
“To the Cartels,” DHS wrote, “Your drones are failing, your tactics are being exposed, and you have no advantage. @CBP and @DeptofWar will keep taking them down.”
In an interview with Fox News, Jeffrey Stalnaker, deputy chief patrol agent for Border Patrol, said cartels primarily use drones for reconnaissance during drug and human smuggling operations rather than for smuggling.
Cartels previously sent lookouts to monitor Border Patrol agents and other U.S. personnel but now use drones to watch from overhead.
“They’re watching when our soldiers and our agents are coming into the field, where they’re working, and then that allows them to plan how they’re going to send individuals north from Mexico into the United States illegally, trying to circumvent us between the ports of entry,” he explained.
Federal officials told Fox News that U.S. anti-drone measures at the southern border have succeeded so far, but cartel drone tactics are rapidly evolving. Some cartel drones are known to be used for lethal purposes, but officials said those have not yet been encountered at the border. For the past three weeks, the U.S. military has been conducting exercises in the desert outside Yuma, Arizona, testing new anti-drone gear ranging from guns and unmanned aerial vehicles to drone-capturing technology.
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A U.S. Army Stryker armored vehicle guards the U.S.-Mexico border in El Paso, Texas, on July 7, 2025, following the establishment of a 260-mile military zone along the southern border in New Mexico and Texas. The image was taken from Ciudad Juarez, Mexico. (REUTERS/Jose Luis Gonzalez)
Brigadier General Jason Rueschhoff, director of operations for U.S. Northern Command, told Fox News, “We are developing capability at a pace that is keeping ahead of our enemy and that’s really important and that’s what happens here.”
Fox News Digital reported at the start of the month that Joint Task Force – Southern Border was carrying out drone takedowns using specialized counter-drone equipment provided and integrated by other military units, according to a senior War Department official.
The official said each operation was planned and closely coordinated with the Mexican military and border authorities to prevent interference or unintended conflicts between forces operating on either side of the border.
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The seal of the Department of War is displayed inside the Pentagon in Washington, D.C. (elal Gunes/Anadolu via Getty Images)
At the time, senior administration officials praised President Donald Trump’s use of military force during a press call, saying, “The president directed, the Department of War executed, the first ever plan and strategy to use direct military force to defend the homeland from this threat.”
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“The effects have been spectacular, and we’ve seen the largest and steepest reduction in U.S. casualties inflicted by the cartels in American history,” the official added.
Fox News Digital’s Michael Sinkewicz and Fox News’ Bill Melugin contributed to this report.