A Japanese submarine is a type of military vessel used by the Japan Maritime Self-Defense Force (JMSDF) for underwater operations. These submarines are designed for various missions, including surveillance, reconnaissance, and anti-submarine warfare. They are equipped with advanced technology, such as sonar systems and torpedoes, to enhance their combat capabilities. The modern Japanese submarines are known for their stealth and efficiency. They often feature a streamlined design and are constructed using advanced materials to reduce noise and improve maneuverability. This allows them to operate effectively in the Pacific Ocean and protect Japan's maritime interests.