The USS Tortuga (LSD-46) is a dock landing ship of the United States Navy, commissioned in 1991. It is designed to support amphibious operations by transporting and launching landing craft and vehicles. The ship can carry troops, equipment, and supplies, making it essential for military missions. The Tortuga is part of the Whidbey Island-class of dock landing ships, which are known for their versatility and capability to operate in various environments. It is equipped with advanced navigation and communication systems, enhancing its operational effectiveness during deployments and humanitarian missions.