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 capabilities. Historically, Japan has developed several classes of submarines, with the Sōryū-class being one of the most notable. These submarines are known for their stealth and efficiency, allowing them to operate effectively in the Pacific Ocean. The JMSDF continues to modernize its submarine fleet to address evolving security challenges.