The Asia Maritime Transparency Initiative of Washington’s Center for Strategic and International Studies said the images showed a “modest new structure” on Bombay Reef, topped by a radome and solar panels. ...
“The reef is directly adjacent to the major shipping lanes that run between the Paracels and the Spratly Islands to the south, making it an attractive location for a sensor array to extend Chinese radar or signals intelligence collection over that important sea lane,” the group said.
The Marines and our Australian friends could be quite busy in the South China Sea in wartime.
Which would make this type of amphibious warfare vessel useful (membership required).