Pusan Perimeter
From Freepedia
The Pusan Perimeter was the area in extreme southeast Korea that was held by US and South Korean troops during the furthest advance of the North Korean troops, in the summer and fall of 1950, during the Korean War. It extended along 140 miles and was named after the coastal city of Pusan which served primarily as an airhead for resupply and reinforcement. Much of its length coincided with the course of the Nakdong River.
