A newly declassified US defense intelligence assessment revealed that Ukraine’s disabling of thousands of illicit Russian Starlink terminals disrupted Moscow’s command-and-control systems, contributing to Kyiv’s advance earlier this year.
The findings, first reported by Bloomberg on Friday, highlight the extent to which Russian forces had relied on smuggled commercial satellite terminals to support battlefield operations.
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The disruption weakened Russia’s frontline coordination and helped Ukrainian forces regain nearly 400 square kilometers (249 miles) of territory.
Russian reliance
For months, Russian forces used black-market networks to acquire Starlink terminals and deploy them along the front line. The system helped address long-standing communication shortfalls, enabling coordination of troop movements, drone operations and artillery targeting.
In February, Ukrainian teams, working with SpaceX, introduced geographic restrictions that disabled authorized terminals operating in the combat zone.
According to US intelligence, the impact on Russian operations was immediate and reduced Russia’s ability to coordinate reconnaissance.
Combined impact
The report notes that the Starling disruption coincided with restrictions on the use of Telegram by Russian forces.
Russian units had relied on Telegram as an informal alternative to military communication systems. The combined loss of both Starlink connectivity and access to messaging platforms further degraded coordination on the ground.
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Ukrainian military sources reported confusion among Russian units during this period, including disruptions to command structures.
Ukrainian officials point to wider planning
Ukrainian officials said the Starlink disruption was one factor among several influencing battlefield outcomes.
President Volodymyr Zelensky said earlier that operations in southern Ukraine had begun before the changes to Starlink access.
“The operation in the south… began a month before the decision regarding Starlink,” Zelensky reported.
Digital Transformation Minister Mykhailo Fedorov said the restrictions on Starlink terminals, together with the use of medium-range strike drones, contributed to shifting momentum in Ukraine’s favor.