Recent drone incursions across Denmark forced airport shutdowns and flight diversions. The Danish Prime Minister called it a “serious attack” on critical infrastructure. Days later, similar incidents were reported near Munich, showing how small, low-cost drones can disrupt civilian life and expose weaknesses in Europe’s airspace security.
EU and NATO ministers now plan to advance a continent-wide Drone Wall, a coordinated defense network combining radars, optical sensors, electronic warfare tools, interceptors and shared command systems. The goal is to detect, track and stop drones before they reach borders, airports, power plants, data centers or cities.
But the hardest drones to stop are not the big ones at altitude. The real threat comes from small, low-flying systems hidden by ground obstacles and the planet’s curvature, the ones traditional radars cannot see.
Kelluu provides the missing layer. Our autonomous airships operate below the clouds for hours, carrying multi-sensor payloads that detect, classify and track low-altitude threats. They offer modular multi-sensor approach that can include optical, radar and RF data to reveal drones that would otherwise remain invisible.
When Kelluu’s platforms are connected to existing command and control networks and sensor systems, they strengthen layered surveillance architectures protecting borders and critical infrastructure. They are built for interoperability and can be deployed quickly, even scaled to hundreds of units, cost effectively across Europe.
Kelluu’s technology is already operated in Finland’s largest cities and has been developed in close cooperation with airports and flight command. The system is proven to integrate safely into controlled airspace while providing continuous situational awareness.
A Drone Wall cannot rely on ground sensors, manned or unmanned aircraft, or satellites alone. It needs persistent aerial platforms that operate below the clouds and close the gap between these systems. Kelluu delivers that view.
Europe’s borders and infrastructure are already being tested. The time to act is now.