High Quality Content by WIKIPEDIA articles! HMAS Warrego, named for the Warrego River, was a River-class destroyer of the Royal Australian Navy (RAN). Ordered in 1909, construction of the destroyer started in England, but she was then broken down and reassembled at Cockatoo Island Dockyard in order for the Australian shipbuilding industry to gain experience in warship construction. Warrego was commissioned into the RAN in 1912, and spent her early career operating in Australian waters.