Ключевые слова: maritime, maritime security, military, nautical, naval, naval defense, naval fleet, naval forces, naval maneuvers, naval operations, naval power, naval presence, naval strength, naval surface appearance, naval surface fleet, naval technology, navy, ocean, open sea, sea exploration, sea surface, submarine, submarine deployment, submarine on the sea, submarine surface, submarine travel, submersible, surface, undersea, underwater craft, underwater exploration, underwater navigation, underwater operations, underwater surveillance, underwater vessel,