Dutch Submarine K IX casualty of Japanese attack on Sydney Harbour
The Dutch submarine K IX, later known as HMAS K9, was a K VIII-class vessel constructed for the Royal Netherlands Navy (RNN) in the early 20th century. Ordered on 27 June 1917, she was laid down at the Koninklijke Maatschappij De Schelde shipyard in Vlissingen on 1 March 1919, launched Read more…