The Demilitarized Zone (DMZ) between North and South Korea was established as part of the Korean Armistice Agreement signed on July 27, 1953. It is a heavily guarded and monitored territory that stretches about 250 kilometers (160 miles) across the Korean Peninsula, roughly along the 38th parallel. The DMZ is characterized by restricted access, military patrols, guard posts, and landmines, making it one of the most heavily militarized borders in the world.