SYDNEY: Australia said on Wednesday (Oct 16) it would invest billions of dollars over the next two decades to expand a shipyard in Western Australia that would become the maintenance hub for its nuclear-powered AUKUS submarine fleet. The government will make an initial investment of A$127 million (US$85 million) over three years to upgrade facilities at the Henderson shipyard near Perth, Defence Minister Richard Marles said in a statement. "The Defence Precinct at Henderson will optimise