Denmark is heightening security measures after multiple unidentified drone sightings raised fears of a potential “hybrid war” involving Russia. Prime Minister Mette Frederiksen warned that Europe faces “the most difficult and dangerous situation since the end of the Second World War,” emphasizing that Denmark must prepare for unconventional threats that combine cyberattacks, disinformation, and economic pressure with traditional military risks.
While the Danish government has not officially identified who is behind the drone activity, Frederiksen stated that “there is only one country willing to threaten us, and it is Russia.” The warning comes as NATO and U.S. security forces were deployed to Copenhagen to coordinate responses and protect European leaders meeting to discuss regional security. Justice Minister Peter Hummelgaard described the situation as Denmark’s “new reality,” underscoring growing unease across the country.
Residents have reported distress over drone noises at night, particularly near Copenhagen Airport. Some citizens have begun stocking essential supplies, while others consider relocating if tensions escalate. Authorities have advised people to remain alert and prepare for emergencies. Neighboring Sweden has also urged Denmark to inspect and reinforce its bomb shelters as a precautionary step.
Russian President Vladimir Putin has denied any hostile intent toward NATO members, accusing Europe of “hysteria.” Still, the continued drone incursions and heightened readiness in Denmark signal that the fears of hybrid warfare are now a central concern across Northern Europe.