Andrea Innocenti In recent years, the proliferation of drones has radically transformed the concept of aerial threats . Governments and militaries must now manage scenarios in which small, unmanned aircraft can rapidly cross borders, observe sensitive targets, or, in more extreme cases, release payloads. For Italy, protecting its airspace is no longer a monolithic task, but a multi-layered system that varies based on the origin of the attack, its altitude , and the nature of the payload.
This multifaceted approach includes a first line of defense orchestrated by NATO when the threat comes from outside Italy, followed by a second phase managed entirely by Italy if the vehicle is already within national airspace. The result is a sort of double shield capable of responding flexibly and promptly to any type of drone attempting to breach Italian borders.
The Role of NATO's Defense Network Against Foreign Incursions
When a drone approaches from outside, the first line of defense is NATO 's collective surveillance structure . The allies share a series of long-range radars and command centers that constantly monitor air traffic over Europe. These systems not only detect vehicles in flight, but also calculate their trajectory, allowing for a preemptive risk assessment.
If the detection exceeds a danger threshold, the NATO command activates the air defense systems of the member countries closest to the point of entry.
Shared radars and interception systems of member countries
NATO's shared radars are integrated with ground-based and airborne interception platforms , including surface-to-air missiles and rapid-response fighters. Each nation contributes its own resources, creating an interconnected network capable of targeting a drone before it enters national airspace. Collaboration between member states also ensures redundancy: if one system fails, others can take over without operational disruption. This cooperative defense model is essential for neutralizing threats approaching from multiple directions or at high speeds.
The Italian national shield: three levels of response based on quota and origin
If the vehicle is not stopped by NATO defenses and enters Italian airspace, the national defense shield is activated . This is divided into three levels, each calibrated for a specific flight altitude and the type of drone detected. The goal is to ensure that even low-flying intruders, often more difficult to detect, are intercepted using appropriate technologies, while faster or high-flying aircraft are dealt with using more powerful systems.
Level 1: Low-altitude interceptors and light drones
The first layer is dedicated to low-altitude threats, typically small drones used for reconnaissance or to drop small payloads. Ground-based interceptor units equipped with electronic jamming systems and directed-energy cannons operate here. These devices are capable of disrupting flight communications, forcing the drone to return to its starting point or make an emergency landing. In more critical cases, short-range missiles are used to permanently disable the vehicle.
Level 2: Medium-altitude systems for faster-moving threats
The second tier involves drones operating at intermediate altitudes, often equipped with more sophisticated sensors and extended flight capabilities. This is where medium-range air defense systems come into play , such as active radar-guided surface-to-air missiles, capable of intercepting targets traveling at higher speeds. These platforms are deployed on fixed and mobile sites, ensuring coverage over vast strategic areas, such as industrial zones, critical infrastructure, and urban centers.
Level 3: High-altitude defense and air traffic control
The final layer is reserved for high-altitude threats, where large drones or hybrid vehicles with sustained flight capabilities operate. Protection is provided by high-resolution radars linked to the Italian air traffic control center, which can coordinate interventions with rapid-response fighter units . Combined with identification-friendly-hostile (IFF) systems , these systems allow for rapid differentiation between civilian aircraft and potential attackers, ensuring a targeted and effective response.