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Submarine in the Arctic Ocean
Chinese submarine at sea
Nuclear submarine "vanguard"
Submarines in combat
Frozen in the ice, the submarine breaks it with its power
BE-12 anti-submarine aircraft over water
A submarine in the ocean and a British plane
A submarine sticking out of the water
Ship submarine pipes smoke sea waves
A nuclear submarine in a lighted night dock
The submarine was surrounded by marine life
The submarine team is returning from a mission
Frozen in the ice, the submarine breaks it with its powerFrozen in the ice, the submarine breaks it with its power