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Headline: In June 2025, NATO tested over 60 unmanned surface drones in the Baltic Sea to monitor Russian naval and shadow fleets amid challenging maritime conditions.
Short Summary: In June 2025, NATO, through its Task Force X, conducted operational demonstrations by deploying over 60 unmanned surface drones, including the US-built Saildrones, in the Baltic Sea near the Danish area. These drones were tested for monitoring Russian naval and shadow fleet vessels under challenging environmental conditions with strong winds and waves up to two meters. The drones operated autonomously and alongside crewed vessels, tracking hundreds of ships daily, including detection of 'red boats' from training exercises and identifying actual dark ships like Russian shadow and merchant vessels. Task Force X acts under the alliance's transformation command to accelerate acquisition and integration of unmanned maritime systems. Simultaneously, Brookings Institution reports noted Russia steadily increasing its shadow fleet oil tankers since 2022, with 40% acquired from the EU and the size of the shadow fleet growing by an average of seven tankers monthly over three years, now totaling about 343 vessels. The tests aim to enhance NATO’s maritime situational awareness and counter growing Russian maritime capabilities.
Extended Summary: In June 2025, NATO, through its Task Force X, conducted operational demonstrations by deploying over 60 unmanned surface drones, including the US-built Saildrones, in the Baltic Sea near the Danish area. These drones were tested for monitoring Russian naval and shadow fleet vessels under challenging environmental conditions with strong winds and waves up to two meters. The drones operated autonomously and alongside crewed vessels, tracking hundreds of ships daily, including detection of 'red boats' from training exercises and identifying actual dark ships like Russian shadow and merchant vessels. Task Force X acts under the alliance's transformation command to accelerate acquisition and integration of unmanned maritime systems. Simultaneously, Brookings Institution reports noted Russia steadily increasing its shadow fleet oil tankers since 2022, with 40% acquired from the EU and the size of the shadow fleet growing by an average of seven tankers monthly over three years, now totaling about 343 vessels. The tests aim to enhance NATO’s maritime situational awareness and counter growing Russian maritime capabilities.
NATO’s Task Force X conducted operational tests in June 2025 using over 60 unmanned surface vessels, primarily Saildrones, in the Baltic Sea near Denmark to monitor Russian naval and shadow fleets. This demonstration aimed to stress test these autonomous systems in demanding sea conditions and improve maritime surveillance capabilities. The drones tracked hundreds of vessels daily, including training ships and dark merchant ships associated with Russia. Task Force X is operating under NATO’s Allied Command Transformation to accelerate development and integration of unmanned maritime systems. A Brookings Institution report highlights Russia’s steady increase in shadow fleet oil tankers since 2022, raising concerns over energy transport and maritime security in the region.
The event describes NATO conducting defense preparatory activities by testing unmanned maritime drones to monitor and counter Russian naval shadow fleet activities. There is no indication of Russian hostile aggression activity in this event, while NATO’s actions clearly represent defensive technology testing and intelligence gathering.
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