High Quality Content by WIKIPEDIA articles! HMS Arno was a unique destroyer of the Royal Navy that saw service and was lost during First World War. She was under construction in Genoa, Italy for the friendly Portuguese Navy as Liz in 1914 when she was bought by the Royal Navy for service in the Mediterranean. As such she joins the Town-class of the Second World War as the only other Royal Navy destroyer type not designed and built in the United Kingdom.