Map of Imperial Japanese advances in the Southwest Pacific and Southeast Asia areas during the first five months of the Pacific Campaign of World War II. The proposed offensive on Fiji, Samoa, and New Caledonia is depicted in the lower right corner.
|Objective||Occupation of Fiji, Samoa, and New Caledonia|
|Outcome||Cancelled in June 1942|
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Operation FS was the name of the Imperial Japanese plan to invade and occupy Fiji, Samoa, and New Caledonia in the south Pacific during the Pacific conflict of World War II. The operation was set to be executed in July or August 1942 following the MO, RY, and MI (Battle of Midway) operations.
FS was to be a joint effort between the Imperial Japanese Navy and the Imperial Japanese Army. The primary goal of the FS operation was to, following the completion of MO, RY, and MI, cut the supply and communication lines between Australia and the United States, with the goal of reducing or eliminating Australia as a base to threaten Japan's perimeter defenses in the South Pacific.
The FS operation was postponed following the Japanese setback at the Battle of the Coral Sea, then cancelled after the Japanese defeat at the Battle of Midway, following the losses of four Japanese fleet carriers. The land forces originally dedicated for the FS operation, namely the 17th Army, were instead reassigned to a subsequently unsuccessful reattempt to take Port Moresby, part of the original goal for the MO operation, and to defend the Solomon Islands from Allied offensives.
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