An amphibious assault ship (also commando carrier or an amphibious assault carrier) is a type of amphibious warfare ship employed to land and support ground forces on enemy territory by an amphibious assault. The design evolved from aircraft carriers converted for use as helicopter carriers (and as a result, are often mistaken for conventional fixed- wing aircraft carriers). Modern ships support amphibious landing craft, with most designs including a well deck. Coming full circle, some amphibious assault ships now have a secondary role as aircraft carriers, supporting V/STOL fixed- wing aircraft.
The role of the amphibious assault ship is fundamentally different from a standard aircraft carrier: its aviation facilities have the primary role of hosting helicopters to support forces ashore rather than to support strike aircraft. However, some are capable of serving in the sea -control role, embarking aircraft like Harrier fighters for CAP and anti- submarine warfare helicopters or operating as a safe base for large numbers of STOVL fighters conducting air support for the Marine expeditionary unit once it has gone ashore. Most of these ships can also carry or support landing craft, such as air -cushioned landing craft (hovercraft) or LCUs.
The largest fleet of these types is operated by the United States Navy, including the Wasp class dating back to 1989 and the very similar America -class ships that debuted in 2014. Amphibious assault ships are also operated by the French Navy, the Italian Navy, the Republic of Korea Navy, the Royal Australian Navy, the Royal Navy, and the Spanish Navy.
The term amphibious assault ship is often used interchangeably with various classification of ship.
