Submarines travel through the ocean hidden beneath the waves. Subs are used for everything from spying to sneak attacks. Learn more about these underwater vessels, including the weapons they carry, how they find their way around under the sea, and the missions they face.Submarines travel through the ocean hidden beneath the waves. Subs are used for everything from spying to sneak attacks. Learn more about these underwater vessels, including the weapons they carry, how they find their way around under the sea, and the missions they face.
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