What type of aquatic unit is XXX?
USS Guam (LPH-9)
USS Guam (LPH-9), an Iwo Jima-class amphibious assault ship, was laid down by the Philadelphia Naval Shipyard on 15 November 1962; launched on 22 August 1964, sponsored by Mrs. Vaughn H. Emory Green, and commissioned on 16 January 1965, Captain N. E. Thurmon in command.
Iwo Jima-class amphibious assault ship