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Why was the port of Pusan important to UN forces during the Korean War?
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Korean War
Map showing North Korean advances in the Korean War in June–August 1950.
The port of Pusan was vital to the United Nations Command during the Korean War because it served as the essential hub for the Eighth Army’s logistics system.1
As UN forces struggled to halt the North Korean advance, the port facilitated the arrival of critical military supplies, equipment, and reinforcements. The logistics operations at Pusan relied heavily on the support of Korean and Japanese technicians, as well as thousands of Korean laborers, to sustain the war effort. By providing a secure entry point for essential resources—including tanks, artillery, and aircraft—Pusan enabled the UN forces to stabilize their defensive lines, eventually forming the "Pusan Perimeter" that prevented the collapse of South Korean defenses.1