Why is nobody allowed to cross the DMZ?

The Korean Demilitarized Zone (DMZ) is a buffer zone between North and South Korea, established as part of the armistice agreement that ended the Korean War in 1953. It is heavily fortified and monitored to prevent military incursions, and crossing it is prohibited to maintain peace and security in a highly tense region. The area is also a symbol of the ongoing conflict and division between the two Koreas, making any unauthorized crossing a potential trigger for escalation. Consequently, strict regulations are enforced to ensure safety and prevent misunderstandings.