Mar-a-Lago Air Defense: What Was Deployed and Why?

The U.S. military has deployed ground-based air defence systems around President Donald Trump’s Mar-a-Lago estate in Palm Beach, Florida, with two launchers positioned on a barge in the Intracoastal Waterway beside the property and further equipment filmed near the city’s international airport. A spokesperson for the North American Aerospace Defense Command (NORAD) and U.S. Northern Command confirmed that the commands had “deployed ground-based air defense assets in and around Mar-a-Lago, Florida” at the request of the U.S. Secret Service, after the barge was first spotted on October 26. Neither command named the systems or said how long they would stay, with the spokesperson stating: “Due to security considerations, we cannot provide tactics, techniques and procedural specifics.” The deployment significantly escalates the protection of a private presidential residence, extending to Palm Beach a layer of ground-based air defence normally reserved for the national capital and for forward bases abroad.

The Secret Service confirmed that Northern Command was providing counter-drone equipment at its request, which the command described as “counter-small Unmanned Aircraft System Fly-Away Kits”, and stated that it “continues to operate in a heightened threat environment.” Neither the Secret Service nor the military has cited a specific threat, while a former U.S. Navy fighter pilot who viewed the equipment, Matthew Buckley, identified the launchers as Avenger short-range air defence systems carrying eight Stinger missiles each, and said their main purpose was to counter small and medium drones and particularly drone swarms. The move follows a long record of airspace violations over the estate, with NORAD having intercepted more than 60 aircraft near Mar-a-Lago since Trump returned to office in January 2025, the latest on October 24, when an F-16 fighter used a “headbutt” manoeuvre to turn away a civilian aircraft inside the restricted zone.

The AN/TWQ-1 Avenger, built by Boeing and fielded by the U.S. Army from the late 1980s, mounts a gyro-stabilised turret on a Humvee chassis with two pods of four FIM-92 Stinger infrared-guided missiles, a forward-looking infrared sensor, a laser rangefinder and an M3P .50 calibre machine gun. The Stinger’s effective range of around five kilometres makes the system a last line of defence against low and slow targets rather than against cruise or ballistic missiles, which would require far larger systems such as the MIM-104 Patriot. Avenger units were among the systems deployed to protect Washington after the September 11, 2001 attacks, and the type has since been widely adapted for the counter-drone role as small unmanned aircraft have become the most common aerial threat to fixed sites, a trend highlighted by Russia’s own efforts to build layered anti-drone defences around high-value facilities.

The Palm Beach deployment comes as Washington weighs renewed strikes on Iran, and nearly two years after a gunman was arrested on September 15, 2024, at Trump’s golf club in nearby West Palm Beach, after a Secret Service agent spotted a rifle barrel protruding from the perimeter fence. The Secret Service has not said whether the new systems will remain in place permanently or only during the president’s visits. The Avenger’s Stinger missiles were designed in the 1970s to defeat helicopters and low-flying jets, and the system’s sensors are optimised for targets far larger than the commercial quadcopters that make up most of today’s drone threat.