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The U.S. Navy has some of the most advanced nuclear submarines in the world. Its newest addition is named after an important ...

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Prairie dog Poppy starts the morning with wahoo bursts.

As it tried to demonstrate its continuing ability to fight, Ukraine said it had used drones to inflict serious damage on a Russian Kilo-class submarine at a Black Sea port. By Maria Varenikova ...

Ukraine says underwater drone strike is historic first Russia denies attack caused any damage Attack hits Kilo-class, missile-carrying submarine Vessel was in Russia's Novorossiysk port in Black Sea ...

Ukraine’s domestic security service, the SBU, said Monday that it had carried out an attack on a Russian submarine in the Black Sea port of Novorossiysk, causing critical damage to the vessel and ...

The British navy said Thursday it tracked a Russian submarine navigating through the English Channel for three days, as it steps up efforts to police its seas against such threats. A British naval ...

Ukraine said it had used underwater drones to strike and critically damage a Russian submarine, claiming a first in maritime warfare and mounting a display of Ukraine’s ability to find innovative ways ...