Operation Coronet

E50097

Operation Coronet was the planned Allied amphibious invasion of Japan’s main island of Honshu, scheduled for early 1946 as part of the broader strategy to force Japan’s surrender in World War II.


Statements (46)
Predicate Object
instanceOf planned amphibious invasion
planned military operation
aimedAt direct assault on Tokyo Plain
alsoKnownAs Invasion of the Kanto Plain (planned)
codenameOf invasion of Honshu
conflict World War II
country Australia
Canada
United Kingdom
United States of America
surface form: "United States"
historicalPeriod 1940s
location Honshu
Kantō region
surface form: "Kantō Plain"

Tokyo metropolitan area
surface form: "Tokyo region"
objective capture Tokyo region
force Japan’s surrender
partOf Allied operations in the Pacific Theater
Operation Downfall
planned invasion of Japan
plannedAlliedParticipants Commonwealth ground forces
Royal Navy
United States Army
United States Marine Corps
United States Navy
plannedCasualtyExpectations very high on both sides
plannedCommandStructure U.S. Army Pacific
surface form: "U.S. Army Forces, Pacific"

U.S. Pacific Fleet
surface form: "U.S. Navy Pacific Fleet"
plannedDate 1946-03
early 1946
plannedFollowUpTo seizure of Kyushu in Operation Olympic
plannedForceType airborne forces
amphibious forces
ground forces
naval forces
plannedLandingArea Kujūkuri Beach
Sagami Bay
plannedOpposingForce Imperial Japanese Army
Imperial Japanese Navy
plannedScale one of the largest amphibious operations ever conceived
precededBy Operation Olympic
reasonForCancellation Japanese surrender after atomic bombings
Soviet declaration of war on Japan
relatedTo Japanese Instrument of Surrender
atomic bombings of Hiroshima and Nagasaki
status cancelled
theater Pacific War
surface form: "Pacific Theater of World War II"

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

Operation Olympic followedByPlanned Operation Coronet
Downfall hasPart Operation Coronet
Downfall relatedTo Operation Coronet
Operation Downfall subOperation Operation Coronet

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