U.S. Marine Operations In Korea 1950-1953, Volume 5: Operations in West Korea

In March 1952 the 1st Marine Division redeployed from the East-Central front to West Korea. This new sector, nearly 35 miles in length, anchored the far western end of I Corps and was one of the most critical of the entire Eighth Army line. Here the Marines blocked the enemy’s goal of penetrating to Seoul, the South Korean capital. Northwest of the Marine Main Line of Resistance, less than five miles distant, lay Panmunjom, site of the sporadic truce negotiations. - Summary by L. F. Chapman, Jr.