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![Russian K-573 Novosibirsk Yasen M-class nuclear submarine. (Source: Capt_Navy/X) Russian K-573 Novosibirsk Yasen M-class nuclear submarine. (Source: Capt_Navy/X)]()
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Russia is preparing to overhaul its entire nuclear-powered attack submarine fleet, replacing aging Soviet-era boats with a smaller but far more capable force built around Yasen-class submarines—reshaping its undersea strategy for decades to come.![Russian spy device, found in the office of the Ukrainian drone manufacturer, March 24, 2026. (Source: TechEx) Russian spy device, found in the office of the Ukrainian drone manufacturer, March 24, 2026. (Source: TechEx)]()
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![Illustrative image. Downed Russian Skat drone. (Source: Ukrinform) Illustrative image. Downed Russian Skat drone. (Source: Ukrinform)]()
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