Denmark Faces Vulnerability as Drone Attacks Prompt Security Concerns

Tue Nov 11 2025 06:50:08 GMT+0200 (Eastern European Standard Time)

Recent drone sightings near airports and military bases in Denmark have raised alarms about national security. Authorities are now examining their response strategies to protect critical infrastructure.

Denmark is grappling with how to address a series of drone incursions that have temporarily disrupted airports and military operations, exposing vulnerabilities in its defense systems. The incidents, described as potential hybrid attacks, have led the government to consider invoking NATO's Article 4 for consultations regarding collective security. As concerns grow, defense officials emphasize the importance of finding effective measures to protect the country from similar future threats.

Drone incidents at airports and military bases all over Jutland, western Denmark, have not caused any harm or damage—but they have exposed the country's defenses as vulnerable to attack.

In an era of hybrid warfare, there is a sense of embarrassment in Denmark—a founding member of the North Atlantic Treaty Organization (Nato) alliance—that its critical infrastructure has become so vulnerable.

Aalborg and Billund airports had to close on Wednesday night, while drones were spotted at Esbjerg, Sonderborg, and Skrydstrup. Aalborg also serves as a military base, and Skrydstrup is home to some of the air force's F-35 and F-16 warplanes. Drones were also seen over the Jutland Dragoon regiment at Holstebro.

There have since been reports of police investigating drone activities around Denmark's oil and gas platforms in the North Sea, and near the central port of Korsor.

Aalborg airport briefly closed again on Thursday night following another suspected drone sighting, according to police and national media.

The question now facing the country's military is how to respond.

None of the drones have been shot down—defense chiefs decided it was safer not to, but that is not a long-term solution.

Denmark is, of course, not alone. Norway, Estonia, Poland, Bulgaria, and Romania have all been subjected to hybrid warfare in recent weeks. All are on NATO's eastern flank.

Denmark has stated that a 'professional actor' was responsible for the drone attacks it saw, but has not provided further details.

This is a serious moment for Denmark, and its top brass—government, defense, and police—quickly called a press conference where Defense Minister Troels Lund Poulsen said it appeared 'systematic' due to the number of locations targeted. This is what I would define as a hybrid attack, he said.

Prime Minister Mette Frederiksen acknowledged the risk, stating that Russia 'will be a threat to Europe and Denmark for years to come.'

Overall, the recent drone disruptions have prompted a reconsideration of Denmark’s security strategies, highlighting the emerging reality that the nation may need to bolster its operational defenses against such aerial threats.