The so-called Demilitarized Zone a 151-mile-long strip of mountains and fields separating North and South Koreais in fact the only area on the entire peninsula that the U.S. still officially designates a combat zone. Thousands of armed soldiers patrol the entire length of the 2½-mile-wide land-mined strip. Artillery and missiles on both sides are aimed at hills pockmarked with trenches. Since the zone was established by the armistice agreement of July 1953, 49 Americans have been killed and dozens of others wounded in clashes in and near the DMZ. The death toll for North and South Koreans is more than 1,000.
The...