The Finnish reconnaissance balloon Kelluu was used in the REPMUS 2025 exercise, conducted by the North Atlantic Treaty Organization (NATO) in Portugal, aimed at testing autonomous maritime systems in real-world conditions.
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US invests $13 billion in a game-changing naval drone in the seas
The United States Congress released a detailed report in April 2025 about the MQ-25 Stingray, the new unmanned tanker drone developed for the U.S. Navy.
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