The report from the think tank International Institute for Strategic Studies (IISS) maps 144 drone sightings in Europe between 2024 and 2026, AP reports.
These include NATO countries such as Germany, France, Belgium, the Netherlands, the United Kingdom, Denmark and Sweden. Drones were also observed over nuclear power plants.
The number of suspected Russian drones peaked at the end of last year, forcing airports in Germany, Spain and Denmark to temporarily close.
According to the IISS, the Russian drone offensive was a strategic failure for Europe and exposed how poorly equipped Europe's air defenses are to respond to current threats.
