Dock Landing Ships support amphibious operations including landings via Landing Craft Air Cushion (LCAC), conventional landing craft and helicopters, onto hostile shores. These ships transport and launch amphibious craft and vehicles with their crews and embarked personnel in amphibious assault operations. The mission of the Whidbey Island Class Dock Landing Ships is to conduct prompt, sustained combat operations at sea, worldwide, in support of national policy. The class introduced updated communications, combat systems, 20 and 60 ton cranes, expanded repair shops, two helicopter landing spots, complete medical and dental facilities and a fully automated computer-based logistic support.