1942
1942.
Japanese Occupation (1942-1945)
Decoded Japanese military radio messages let U.S. forces know that the Japanese Navy was planning a very large attack on Midway Island, along with a smaller attack on Wake Island.
The Australian war cabinet.
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On April 18, 1942, Colonel James H.Doolittle led the first air raid on the Japanese home islands.
The nearest attack by Japan on US mainland took place in Oregon state forest. This took place in 1942 and was the only attack on the mainland.
The Doolittle Raid : April 18, 1942 .
This attack is known as the Attack on Sydney Harbor. During WWII, Japanese submarines attacked the Australian cities of Sydney and Newcastle.
In WWII, the first real attack of the Japanese on an Australian base occurred with the bombing of Darwin on 19 February 1942. That attack scattered the naval base at Darwin and demoralised Australians. However, Darwin was bombed by the Japanese a total of sixty times between 19 February 1942 and 12 November 1943.For more information, see the link below.
Three Japanese midget-subs attacked on the night of May 31st/June 1st, 1942. See wikipedia for details.