Russian Drone Surveillance Campaign Targets NATO Airspace: A Strategic Assessment

Between late 2024 and early 2026, Russia conducted a coordinated, 18-month campaign of drone surveillance across more than a dozen NATO member states and Ireland, according to an investigation by the International Institute for Strategic Studies (IISS). The operation, which involved 144 recorded incidents, appears designed to map vulnerabilities in European air defense networks and test the reaction times of Western military forces.

Mapping NATO’s Air Defense Vulnerabilities

The IISS report suggests that Russian intelligence services operated with “impunity,” systematically identifying gaps in radar coverage and air defense systems. The campaign focused specifically on the inability of current European infrastructure—often optimized for detecting conventional aircraft and missiles—to effectively track or neutralize small, slow-moving, and low-cost unmanned aerial vehicles (UAVs).

Beyond technical surveillance, the operation exploited legal complexities within various NATO nations. In many jurisdictions, existing laws regarding the interception or destruction of aerial objects do not always permit shooting down these devices when they overfly civilian areas, providing a window of operational “impunity” for the surveillance missions.

Strategic Targets and Nuclear Deterrence

The surveillance efforts targeted high-value military and nuclear infrastructure. Among the sites identified are RAF Lakenheath in the United Kingdom, where U.S. nuclear assets were redeployed in July 2025; the Île Longue nuclear submarine base in France; and the Kleine-Brogel and Volkel air bases in Belgium and the Netherlands, respectively.

Analysts suggest the campaign functioned as a form of “reconnaissance by combat,” intended to assess the readiness of NATO’s nuclear deterrence and identify critical supply chain routes. The psychological impact of these overflights on the host nations was also a documented objective of the Russian military intelligence agency, the GRU, which is believed to have coordinated the operation.

The Role of “Dark Sailing” Vessels

A significant portion of the drone launches occurred from commercial vessels operating in “dark sailing” mode. These ships, often identified as part of the so-called “ghost fleet,” routinely disable their Automatic Identification System (AIS) transponders to mask their location. By launching from these mobile platforms, the operators were able to penetrate sensitive airspace while minimizing the risk of detection by traditional maritime tracking systems.

Evidence of these tactics surfaced throughout the 18-month window. In November 2024, drones overflew RAF Lakenheath, RAF Fairford and at least two other American bases in England, with investigators linking the activity to the tanker Seasons 1 or the cargo vessel Hav Dolphin. Similar incidents were recorded in Poland, where 24 drones were detected in September 2025, and in France, where five drones were spotted over the Île Longue submarine base in December 2025 while three ghost fleet vessels maintained positions between 100 and 200 kilometers from the French coast.

Limitations of European Defense Systems

Despite the frequency of these incursions, reports indicate that none of the drones observed over airbases or sensitive sites were captured or destroyed. According to accounts published by The Guardian, the inability to neutralize these assets highlights a systemic deficiency in European counter-drone capabilities. While major military powers have invested heavily in high-altitude defense, the proliferation of small, low-cost drones has exposed a reliance on equipment ill-suited for this specific threat.

The frequency of these incursions has reportedly trended downward following more aggressive maritime interdiction efforts. European naval forces have begun boarding suspected ghost fleet vessels, including an instance where the French Navy boarded the tanker Boracay, discovering Russian employees on board.

Recommendations for NATO Member States

The IISS concludes its findings with a call for a comprehensive review of rules of engagement across the European Union and NATO member states. Recommendations include:

• Standardizing legal frameworks to allow for the interception of small drones over civilian airspace.
• Investing in specialized radar and electronic warfare systems capable of detecting low-altitude, slow-moving targets.
• Enhancing maritime surveillance to identify and track vessels operating with disabled transponders in proximity to sensitive coastal infrastructure.

As of July 2026, NATO and individual member states are reviewing their internal defense protocols regarding drone threats. Further updates on the evolution of these defense strategies are expected at upcoming ministerial meetings of the Alliance.