LHA, for Landing Helicopter Assault, is the United States Navy's hull classification symbol for the general purpose helicopter-carrying amphibious assault ships of the Tarawa and the America classes. They are used to transport Fleet Marine Force personnel and equipment while operating in a deployed Marine Expeditionary Unit. They normally travel in groups called Amphibious Ready Groups. These ships and their escorts are capable of anything from landing operations to humanitarian operations. These vessels are built with a full flight deck similar in appearance to an aircraft carrier to operate utility and attack helicopters, they can also operate tilt rotor aircraft such as the MV-22 Osprey and STOVL aircraft such as the AV-8 Harrier and the F-35B Lightning II.
The first two ships of the new America-class, LHA-6 and LHA-7, differ from both the older Tarawa-class LHAs and LHDs in that they will have no well deck, LHA-8 and following ships will again include well deck facilities.