The Armistice That Refuses to End The Demilitarized Zone (DMZ) separating North and South Korea is one of the most heavily fortified borders in the world.
It serves as a stark reminder that 70 years after the Korean War's armistice, the two countries remain technically at war.
The July 27, 1953 armistice agreement brought an end to fighting, but it was never meant to be more than a temporary ceasefire.