Operation Olympic

E14860

Operation Olympic was the planned Allied invasion of Japan’s southern island of Kyushu, intended as the first stage of a full-scale invasion that was ultimately rendered unnecessary by Japan’s surrender in 1945.

Aliases (1)
  • Operation Coronet ×1

Statements (41)
Predicate Object
instanceOf Allied invasion plan
planned military operation
belligerentSide Allies
cancellationReason Japan’s surrender in 1945
end of World War II in the Pacific
codeName Operation Olympic
commanderPlanned General Douglas MacArthur
conflict World War II
countryOfPlanning United States of America
followedByPlanned Operation Coronet
forceType amphibious invasion
geographicScope Japanese home islands
southern Kyushu
historicalSignificance illustrates scale of planned invasion of Japan
rendered unnecessary by Japan’s 1945 surrender
involvedBranchPlanned Royal Navy
United States Army
United States Marine Corps
United States Navy
objective invasion of Kyushu
seizure of southern Japan
opposedBy Empire of Japan
partOf Operation Downfall
plannedAs first stage of full-scale invasion of Japan
plannedBy Allied powers
United States
plannedInvasionDate November 1945
planningAuthority General Headquarters, U.S. Army Forces, Pacific
U.S. Joint Chiefs of Staff
precededByPlanned intensive air and naval bombardment of Kyushu
relatedTo Japanese surrender
atomic bombings of Hiroshima and Nagasaki
riskAssessment expected very high casualties on both sides
status cancelled
never executed
strategicPurpose force Japanese surrender through invasion threat
secure bases for subsequent invasion of Honshu
target Kyushu
targetCountry Japan
theater Pacific War
timePlanned late 1945

Referenced by (7)

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