Ключевые слова: anchored, armed, army, boat, deck, deep, defence, defend, defense, diesel, fleet, force, forces, frigate, harbor, marine, metal, military, mission, modern, nato, nautical, naval, navy, navy submarine, nuclear, ocean, operation, part, patrol, periscope, profundity, radar, sea, ship, sky, steel, submarine, technology, torpedo, transport, undersea, underwater, vessel, war, warfare, warship, weapon,