Attack on Sydney Harbour
Three Ko-hyoteki-class midget submarines, each with a two-member crew, entered Sydney Harbour on 31 May – 1 June 1942. Two of the submarines were detected and attacked before they could engage any Allied vessels. The crew of M-14 scuttled their submarine, whilst m-21 was successfully attacked and sunk. The third submarine attempted to torpedo the heavy cruiser USS Chicago, but instead...