Busan Perimeter

E89207

Busan Perimeter refers to the defensive line established by United Nations and South Korean forces around the port city of Busan during the early stages of the Korean War, where they successfully halted the North Korean advance in 1950.

Aliases (1)


Statements (48)

Predicate Object
instanceOf battle of the Korean War
historical event
military defensive line
alsoKnownAs Busan Perimeter
surface form: "Pusan Perimeter"
belligerent Korean People's Army
surface form: "North Korean People’s Army"

Republic of Korea Armed Forces (operationally associated)
surface form: "South Korean forces"

United Nations forces
casualties heavy on both sides
commander Douglas MacArthur
Paik Sun-yup
Walton H. Walker
conflict Korean War
country South Korea
countryInvolved North Korea
South Korea
surface form: "Republic of Korea"

United Kingdom
United States of America
surface form: "United States"
defensiveForceType combined UN and ROK forces
endDate 1950-09-18
followedBy UN advance north of the 38th parallel
UN breakout from the perimeter
frontType static defensive line
geographicalFeatureUsed Nakdong River
Taebaek Mountains
location Busan NERFINISHED
southeastern Korean Peninsula
militaryTheater Korean Peninsula
notableEngagement Battle of Masan
Battle of P’ohang-dong NERFINISHED
Battle of Taegu
Battle of the Nakdong Bulge NERFINISHED
opposingCommander Choe Yong-gon
Kim Chaek
opposingForceType North Korean People’s Army infantry and armor
organizationInvolved United Nations Command
partOf UN defense of South Korea
precededBy Battle of Pusan Perimeter
surface form: "North Korean offensive of June–July 1950"
primaryPortDefended Busan
surface form: "Port of Busan"
relatedOperation Inchon Landing
surface form: "Incheon Landing"
result United Nations and South Korean defensive victory
halt of North Korean advance
startDate 1950-08-04
strategicSignificance enabled later UN counteroffensive
prevented collapse of South Korea
secured last major UN foothold in Korea
supplyRole major UN logistics base
timePeriod August 1950
September 1950

Referenced by (3)

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

Battle of Pusan Perimeter alsoKnownAs Busan Perimeter
Busan Perimeter alsoKnownAs Busan Perimeter
this entity surface form: "Pusan Perimeter"
Nakdong River line partOf Busan Perimeter
this entity surface form: "Pusan Perimeter"