__NOTOC__ Operation FS was the Imperial Japanese plan to invade and occupy Fiji,

American Samoa American Samoa ( sm, Amerika Sāmoa, ; also ' or ') is an unincorporated territory of the United States located in the South Pacific Ocean, southeast of the island country of Samoa. Its location is centered on . It is east of the Internation ...

Samoa Samoa, officially the Independent State of Samoa; sm, Sāmoa, and until 1997 known as Western Samoa, is a Polynesian island country consisting of two main islands (Savai'i and Upolu); two smaller, inhabited islands (Manono Island, Manono an ...

, and New Caledonia in the south Pacific during the Pacific conflict of

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...

. The operation was set to be executed in July or August 1942 following

Operation MO or the Port Moresby Operation was a Japanese plan to take control of the Australian Territory of New Guinea during World War II as well as other locations in the South Pacific. The goal was to isolate Australia and New Zealand from the Allied ...

Operation RY Operation RY was the Imperial Japanese plan to invade and occupy Nauru and Ocean islands in the south Pacific during the Pacific conflict of World War II. The operation was originally set to be executed in May 1942 immediately following Operat ...

, and Operation MI. ''FS'' was to be a joint effort between the

Imperial Japanese Navy The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was the navy of the Empire of Japan from 1868 to 1945, when it was dissolved following Japan's surrender ...

and the

Imperial Japanese Army The was the official ground-based armed force of the Empire of Japan from 1868 to 1945. It was controlled by the Imperial Japanese Army General Staff Office and the Ministry of the Army, both of which were nominally subordinate to the Emperor ...

. The primary goal of Operation FS 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. Operation FS was postponed following the Japanese setback at the

Battle of the Coral Sea The Battle of the Coral Sea, from 4 to 8 May 1942, was a major naval battle between the Imperial Japanese Navy (IJN) and naval and air forces of the United States and Australia. Taking place in the Pacific Theatre of World War II, the batt ...

, then cancelled after the Japanese defeat at the

Battle of Midway The Battle of Midway was a major naval battle in the Pacific Theater of World War II that took place on 4–7 June 1942, six months after Japan's attack on Pearl Harbor and one month after the Battle of the Coral Sea. The U.S. Navy under A ...

, following the losses of four Japanese fleet carriers. The land forces originally dedicated for Operation FS, namely the 17th Army, were instead reassigned to a subsequently unsuccessful reattempt to take

Port Moresby (; Tok Pisin: ''Pot Mosbi''), also referred to as Pom City or simply Moresby, is the capital and largest city of Papua New Guinea. It is one of the largest cities in the southwestern Pacific (along with Jayapura) outside of Australia and New ...

, part of the original goal for Operation MO, and to defend the Solomon Islands from Allied offensives.

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* * {{DEFAULTSORT:FS, Operation 1942 in Japan Cancelled military operations of World War II Pacific Ocean theatre of World War II Pacific theatre of World War II World War II operations and battles of the Pacific theatre

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