NATO strengthens Baltic surveillance after increased drone activity over Denmark
On September 28, 2025, NATO’s Maritime Command announced that the German Navy’s Sachsen-class frigate FGS Hamburg (F220) had made a port call in Copenhagen. The maneuver is part of Operation Baltic Sentry, which has gained greater importance following the surge in drone activity over Danish airports and military facilities.
The week before, local residents reported several drone sightings, information later confirmed by Danish police and military authorities.
In response, the government suspended all civilian drone flights, and a Counter-UAS radar was spotted at Copenhagen Airport.
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Incidents spread across the Baltic
According to AP News, the incursions in Denmark are linked to similar incidents reported in other NATO countries such as France, Norway, Sweden, Estonia, and the Netherlands. These reports come just weeks after a large-scale violation of Polish airspace, repelled by Alliance forces on September 9.
Preliminary reports suggest that some drones may have been launched from the Baltic Sea, possibly from Russian tanker vessels, approaching strategic areas before retreating. In most cases, the equipment disappeared from allied radars after leaving the airspace.
Multinational force in the Baltic Sea
The arrival of the FGS Hamburg reinforces NATO’s naval presence in the region, alongside the U.S. Navy’s Arleigh Burke-class destroyer USS Bainbridge (DDG-96) and the Swedish Navy’s Visby-class corvette HSwMS Helsingborg (K32).
In a statement, NATO Command emphasized:
“The presence of FGS Hamburg operating near Denmark as part of Baltic Sentry sends a clear message of security and cohesion within the Alliance. Following recent drone incidents, NATO will expand surveillance with new multi-domain assets across the entire Baltic Sea, including Denmark.”
Source and images: Wikimedia | NATO Maritime Command X @NATO_MARCOM. This content was created with AI assistance and reviewed by the editorial team.
