A new report from the International Institute for Strategic Studies (IISS) provides the most detailed account to date of drone incursions targeting European airbases, airports, and nuclear facilities since late 2024. The analysis distinguishes between verified Russian drone flights and unverified or “phantom” incidents, offering clarity amid heightened security concerns across the continent.

According to the IISS findings, Russian intelligence orchestrated a coordinated surveillance campaign using drones launched from vessels associated with Moscow’s sanctions-dodging shadow fleet. These ships, operating outside conventional shipping lanes and often disabling transponders, enabled covert drone launches near critical infrastructure in countries including Sweden and Belgium.

The report emphasizes that while some sightings were later attributed to misidentification or civilian activity, a subset of incidents involved deliberate, repeatable patterns consistent with state-led reconnaissance. This included flights near nuclear sites and military installations, raising alarms about potential targeting intelligence gathering.

For content creators covering defense, geopolitics, or drone technology, the IISS report underscores the growing role of unmanned systems in hybrid warfare and the challenges of monitoring non-traditional launch platforms. It also highlights how sanctions evasion tactics are evolving to support intelligence operations beyond traditional military channels.

The full IISS assessment, released in early July 2026, calls for improved maritime domain awareness and drone detection capabilities along European coastlines. It serves as a warning that surveillance threats may increasingly originate not from airbases, but from seemingly civilian vessels exploiting regulatory gray zones. Creators should monitor how NATO and EU states respond to this emerging tactic in their security and counter-drone strategies.