Nomonhan Incident

E38882

The Nomonhan Incident was a 1939 border war between Japan and the Soviet Union (with Mongolia) near the Khalkhin Gol river that ended in a decisive Soviet victory and helped deter further Japanese expansion into Siberia.


Statements (49)
Predicate Object
instanceOf Soviet–Japanese border war
border conflict
military conflict
belligerent Imperial Japanese Army
Mongolian People’s Army
Soviet Red Army
cause border dispute between Manchukuo and Mongolia
conflicting territorial claims along Khalkhin Gol
commander Georgy Zhukov
Michitarō Komatsubara
conflictIn World War II prelude
consequence Soviet–Japanese Neutrality Pact of 1941
deterrence of further Japanese expansion into Siberia
countryInvolved Empire of Japan
Mongolia
Soviet Union
date 1939
encouragedDoctrine Japanese Nanshin-ron (Southern Expansion Doctrine)
endDate 1939-09
hasAlias Battle of Khalkhin Gol
Khalkhin Gol conflict
Nomonhan War
historicalPeriod interwar period
pre–World War II Asia
influenced Japanese decision to sign the Tripartite Pact with Germany and Italy
Japanese strategic shift toward southern expansion in Southeast Asia and the Pacific
location Khalkhin Gol river
Nomonhan area
border between Mongolia and Manchukuo
militaryTacticUsed Soviet combined-arms offensive
encirclement operations
notableCommander Georgy Zhukov
notableFeature decisive encirclement of Japanese forces in August 1939
large-scale use of tanks and aircraft in remote steppe terrain
opponent Japan
Mongolia
Soviet Union
opposedDoctrine Japanese Hokushin-ron (Northern Expansion Doctrine)
partOf Soviet–Japanese border conflicts
precedes Japanese attack on Pearl Harbor
Soviet–Japanese Neutrality Pact of 1941
relatedTo Soviet–Japanese Neutrality Pact
Soviet–Japanese border conflicts
World War II in the Pacific
result Japanese defeat
decisive Soviet victory
scale tens of thousands of troops engaged on each side
startDate 1939-05
theater Eastern Front (Far East Asia)

Referenced by (10)
Subject (surface form when different) Predicate
Armed Forces of the Empire of Japan
Imperial Japanese Army ("Soviet–Japanese border conflicts")
Imperial Japanese Army ("Battle of Nomonhan")
Imperial Japanese Army Air Service
Imperial Japanese Army General Staff
RKKA ("Soviet–Japanese border conflicts")
conflict
Battle of Khalkhin Gol
Battle of Khalkhin Gol ("Nomonhan Incident (in Japan)")
alsoKnownAs
Nomonhan Incident ("Nomonhan War")
hasAlias
Nakajima Ki-27
usedInConflict

Please wait…