Pusan Perimeter offensive

This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources. Find sources: "Pusan Perimeter offensive" – news · newspapers · books · scholar · JSTOR (September 2019)

Pusan Perimeter offensive
Part of the Korean War
Map of the Pusan Perimeter breakout
Date 16–22 September 1950 Location Pusan, South Korea Result United Nations victory
Belligerents
United Nations  United States  South Korea  United Kingdom	North Korea
Commanders and leaders
Douglas MacArthur Walton Walker Frank W. Milburn Chung Il-Kwon Shin Sung-Mo Earle E. Partridge	Choi Yong-kun Kim Chaek Kim Ung Kim Mu Chong
Units involved
Eighth Army 2nd Infantry Division 25th Infantry Division I Corps 1st Cavalry Division 24th Infantry Division 5th Regimental Combat Team 1st Infantry Division 27th Infantry Brigade Republic of Korea Army I Corps 3rd Infantry Division II Corps 6th Infantry Division 8th Infantry Division Fifth Air Force	Korean People's Army 1st Division 2nd Division 3rd Division 4th Division 5th Division 6th Division 7th Division 8th Division 13th Division 15th Division 27th Division 105th Armored Division
Strength
140,000	70,000

The Pusan Perimeter offensive was a large-scale offensive by United Nations Command (UN) forces against North Korean forces commencing on 16 September 1950.

UN forces, having been repeatedly defeated by the advancing North Koreans, were forced back to the "Pusan Perimeter", a 140-mile (230 km) defensive line around an area on the southeastern tip of the Korean Peninsula that included the port of Pusan. The UN troops, consisting mostly of forces from the South Korea and the United States (US) mounted a last stand around the perimeter, fighting off repeated North Korean attacks for six weeks as they were engaged around the cities of Taegu, Masan, and Pohang and the Naktong River. The massive North Korean assaults were unsuccessful in forcing the UN forces back further from the perimeter, despite two major pushes in August and September. Following the UN counterattack at Inchon on 15 September, on 16 September UN forces within the Pusan Perimeter mounted an offensive to drive back the North Koreans and link up with the UN forces at Inchon.