A "Helicopter Destroyer" is a type of naval warship designed primarily to carry and operate helicopters. These vessels are equipped with flight decks and hangars, allowing them to launch and recover helicopters for various missions, including anti-submarine warfare, search and rescue, and troop transport. They often feature advanced radar and weapon systems to protect themselves and their aircraft. Typically, helicopter destroyers are larger than traditional destroyers and can support multiple helicopters simultaneously. They play a crucial role in modern naval operations, enhancing a fleet's versatility and operational reach. Examples of such ships include the Mistral-class and Izumo-class vessels.