Demilitarized Zone is the zone labelled on the map demarcating North Korea and South Korea.
Step-by-step explanation:
DMZ is the acronym for Demilitarized Zone for the zone of no military and it demarcates the area between North Korea and South Korea. The zone is along the 38th Parallel and is almost 150 miles long.
This area has no military excess with cease fire protocol since the Korean war ended. It is placed over the Korean Peninsula and is in existence since 1953 after the war ended after the period of 3 years from 1950 to 1953.