Iwo Jima-class amphibious assault ship
The Iwo Jima-class amphibious assault ships of the United States Navy were the first amphibious assault ships designed and built as dedicated helicopter carriers, capable of operating up to 20 helicopters to carry up to 1,800 marines ashore. They were named for battles featuring the United States Marine Corps, starting with the Battle of Iwo Jima. The first ship of the class was commissioned in 1961, and the last was decommissioned in 2002. The hull classification of "LPH" stands for "Landing Platform Helicopter".
USS Iwo Jima (LPH-2), the lead ship of the class, off the coast of South Vietnam in 1965.
An amphibious assault ship is a type of amphibious warfare ship employed to land and support ground forces on enemy territory during an amphibious assault. The design evolved from aircraft carriers converted for use as helicopter carriers. Modern designs support amphibious landing craft, with most designs including a well deck. Like the aircraft carriers they were developed from, some amphibious assault ships also support V/STOL fixed-wing aircraft and have a secondary role as aircraft carriers.
Well deck of USS Iwo Jima seen from a deployed landing craft
Akitsu Maru of the Imperial Japanese Army
HMS Ocean, a light aircraft carrier seen in 1952, before its conversion into the role of an amphibious assault ship carrying helicopters
An AV-8 Harrier and CH-53 aboard USS Nassau