World War II: Submarine Attacks on Sydney

'Imperial Japanese Navy Midget Submarine Attack on Sydney Harbour, 31 May-1 June 1942...'

'The first midget to arrive at Sydney Heads was that piloted by Chuman. What followed was a tragedy for the Japanese, combined with moments of ineptitude by the harbour defenders...'

'In May and June 1942 the war was brought home to Australians on the east coast when the Japanese attacked Sydney Harbour from the sea...'

'Of the three midget subs to infiltrate the harbour that night, the M24 was the only one to achieve its mission. Two others were scuttled...'

"There are a number of Australian ships which sank with sailors aboard. None of those have been disturbed or raised. It should not be any different for the crew of a Japanese submarine..'

'On the night of 31 May 1942 three Japanese midget submarines entered Sydney harbour...'

'On the night of 29 May 1942, five large Japanese submarines positioned themselves 56 kilometres
north-east of Sydney Heads. At 3.00 am the next day one of the submarines launched a
reconnaissance aircraft...'