USS Bonhomme Richard (LHD 6) will relocate to San Diego in the fall of 2017 and USS Wasp (LHD 1) will replace it as the forward-deployed amphibious assault ship in Japan.
By U.S. Navy photo by Mass Communication Specialist 2nd Class Zachary L. Borden (RELEASED) (http://www.navy.mil/view_single.asp?id=51717) [Public domain], via Wikimedia Commons
The move is necessary as Wasp is configured to support F-35B flight operations, the first F-35B to deploy to Japan will take place in 2017.