The "Dolphin-class" refers to a series of submarines used by the Israeli Navy. These submarines are designed for various missions, including intelligence gathering, surveillance, and special operations. They are known for their advanced technology and stealth capabilities, allowing them to operate undetected in various maritime environments. Dolphin-class submarines are typically equipped with torpedoes and can also launch cruise missiles. They are considered a vital part of Israel's defense strategy, providing a second-strike capability in the event of a conflict. The submarines are built in Germany and have been in service since the late 1990s.