Report says Russia used shadow-fleet-linked drones across Britain and Europe
A new strategic report says Russia launched hundreds of drones and covert unmanned aircraft across Britain and Europe using vessels linked to its shadow fleet. The assessment, published by the International Institute of Strategic Studies, says the activity formed part of a wider unconventional campaign against Europe. It says the drones were used to probe airports, military bases and nuclear sites.
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The report names RAF Fairford, Feltwell, Lakenheath and Mildenhall among the sites affected in the United Kingdom. It also says dozens of locations across continental Europe were targeted or monitored. According to the assessment, Russian-linked vessels and the shadow fleet were likely used as launch or recovery platforms for the drones.
The report says the activity has been ongoing since 2024, with repeated mystery drone sightings around airports, military bases and civilian areas. It argues that the pattern may have allowed the Kremlin to map reaction times, coverage gaps and limitations in European integrated air defences. The assessment also says the drones were used to observe critical infrastructure and could be linked to preparations for a future high-intensity conflict.
The findings matter because they point to a form of pressure that sits below open warfare but can still test national security systems. Airports and military bases are sensitive targets because disruption there can affect both civilian transport and defence readiness. Nuclear sites add another layer of concern because surveillance around them raises questions about resilience and escalation.
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The report also places the drone activity in the context of Russia's shadow fleet, a term used for vessels that operate outside normal scrutiny and have been associated with sanctions evasion and other covert activity. One Russia expert quoted in the report said the shadow fleet had previously been identified as a likely source for some of the drones. He said the pattern could help Russia learn what is possible and how quickly countries respond.
What remains unclear is the full scale of the drone activity, how many incidents were directly linked to Russian vessels, and what specific countermeasures were taken at the affected sites. The report says a lack of visible response could encourage further activity, but it does not provide a complete public record of each incident. The next question is whether European governments will publicly confirm the findings or announce new defensive measures in response.
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