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Denmark records record GPS disruptions near Bornholm as Baltic interference intensifies

Recent U.S. intelligence assessments indicate that Russia could attempt a limited attack on a NATO member country sometime between this autumn and 2029

EUalive with agencies August 10, 2026 12:24

Denmark has recorded unprecedented levels of GPS signal disruptions in the area of the island of Bornholm in 2026, with experts citing reasonable grounds to suspect Russian involvement. A measuring station on the Danish island logged 30 instances of jamming and spoofing so far this year, compared with 16 throughout 2025 and 11 in 2024, according to Danish broadcaster DR as reported by European Pravda.

Instruments cannot pinpoint the exact source, but researchers note a clear rise since Russia’s full-scale invasion of Ukraine in 2022. “Since the start of the war in Ukraine, we have noticed a significant increase in the number of such incidents – because GPS is widely used in military technologies, including drones and missiles. So it is quite obvious that someone, in an attempt to defend themselves, is interfering with and distorting these signals,” said researcher Søren Reime Larsen.

Cargo vessel captain and owner Jens Nielsen, who operates Baltic Sea routes, reported that problems have worsened. Earlier disruptions typically lasted no more than 20 minutes, but on 29 July, for example, there was no adequate signal for an entire day in the zone between Gdańsk and Gotland. The worst issues occur in the south-eastern Baltic Sea.

Pattern of recent GPS outages across the region

These Danish figures form part of a broader and intensifying pattern of GPS interference across the Baltic Sea region. Finland warned in May 2026 of frequent disruptions near the Åland Islands, an area where problems had previously been more limited to the Gulf of Finland.

Sweden reported a sharp surge in 2025, with the Swedish Transport Agency recording hundreds of incidents affecting civil aviation and shipping over the Baltic Sea; officials traced the source to Russian territory. Incidents that were relatively rare in earlier years became near-daily occurrences.

Similar interference has repeatedly disrupted commercial flights, including high-profile cases such as a plane carrying European Commission President Ursula von der Leyen, and affected maritime navigation.

 

Suspected Russian GPS jamming targeted Von der Leyen’s plane over Bulgaria

 

Analyses by researchers and national regulators have frequently pointed to electronic warfare systems in Russia’s Kaliningrad exclave as a primary origin, with expanded spoofing capacity allowing effects to reach deep into neighbouring NATO airspace and waters. Interference has also been linked to efforts to counter Ukrainian drones and protect Russian military assets.

Russia’s strategic interests in the Baltic Sea

The growing electronic warfare activity occurs against the backdrop of Russia’s long-standing strategic interest in the Baltic Sea, a region where Moscow maintains the heavily militarised Kaliningrad exclave and seeks to secure access for its Baltic Fleet amid NATO’s expanded presence following Finland and Sweden’s accession.

Particular attention has focused on the Åland Islands (Åland), an autonomous, demilitarised Finnish archipelago at the entrance to the Gulf of Bothnia. The islands occupy a highly strategic position near the capitals of Finland, Sweden and Estonia. Their demilitarised status, rooted in historical international agreements, has led Western analysts and some Russian commentary to view them as a potential vulnerability or target in any escalation. Control of Åland could enhance Russian defensive depth around St. Petersburg, improve surveillance of Baltic shipping lanes, and complicate NATO operations.

Think-tank assessments and military discussions have repeatedly highlighted Åland alongside other Baltic islands (such as Sweden’s Gotland or Estonian islands) as possible focal points in scenarios involving limited Russian action aimed at testing alliance responses. Russia has simultaneously expanded military infrastructure near its borders with Finland, the Baltic states and in Kaliningrad, with capacity estimates for tens of thousands of additional personnel.

Intelligence warnings of potential tests against NATO

These developments coincide with recent Western intelligence assessments suggesting Russia may seek to test NATO cohesion through limited provocations. In June 2026, Latvian intelligence stated it saw indications that Russia was preparing military provocations against the Baltic countries or Poland—actions short of a full-scale attack, potentially involving hybrid methods such as drones, missiles or other signals intended to pressure the alliance over its support for Ukraine.

More recent U.S. intelligence assessments, reported in early August, indicate that Russian President Vladimir Putin could attempt a limited attack on a NATO member country sometime between this autumn and 2029. Possible scenarios range from cyber operations to small-scale incursions, with the Baltics or Poland viewed as the most likely focus. The aim would be to probe alliance unity and the credibility of Article 5 collective defence commitments, particularly amid ongoing pressures from the war in Ukraine.

NATO and national officials have emphasised continued vigilance and readiness, while noting that such assessments reflect a range of possible contingencies rather than imminent certainty. The combination of persistent GPS interference, Russian military posture in the Baltic, and these intelligence warnings underscores heightened tensions in a region now largely surrounded by NATO members, where electronic and hybrid activities serve as both practical measures and potential signalling tools.

Edited by g.g.

Caption: The islands of Bornholm, Gotland and Åland are of strtategic importance for NATO. [Heritage Foundation]

Updated: August 10, 2026 - 12:24

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