what were the harbour defences?
They were defences that were constructed to protect the Australian city of Sydney from attack by enemy warships and submarines.
Sydney Harbour defences
defences were constructed to protect the Australian city of Sydney from attack by enemy warships and submarines.
who attacked sydney harbour? Submarines belonging to the Imperial Japanese Navy when? Late May and early June 1942 do you know why? UNANSWERABLE
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Sydney Harbour defences [SEP] Introduction
Sydney Harbour was protected by coastal batteries and other fixed defences from the early 19th century until the 1960s. These defences were constructed to protect the Australian city of Sydney from attack by enemy warships and submarines.