Japanese amphibious assault ship Shinshū Maru was created on 1934-11-15.

Assault Amphibious Vehicle was created in 1972.

A U.S. Navy LHD is a large deck, amphibious assault ship; the large deck is for launching and recovering helicopters. LHD's are typically used for Marine amphibious assault and landing force deployments.

An assault ship with a flight deck may resemble an aircraft carrier, but its purpose is to deliver marines and their equipment for amphibious attacks. Many navies use assault ships, but not all of them have a flight deck. An assault ship with its own flight facilities spares the aircraft carriers from the task of carrying marine air support. An assault ship cannot operate the high-performance combat aircraft that an aircraft carrier has, but it does not need them for the job it does. An assault ship does not fight enemy ships at sea. Its purpose is to land on an enemy shore and hold it until reinforcements arrive.

Okinawa