The "비무장지대" (Demilitarized Zone, DMZ) is a buffer zone between North Korea and South Korea. Established in 1953 after the Korean War, it stretches approximately 250 kilometers and is about 4 kilometers wide. The DMZ serves as a barrier to prevent military conflict and is one of the most heavily fortified borders in the world. Despite its name, the DMZ is not entirely devoid of military presence. Both North Korean and South Korean forces maintain a strong military presence near the zone. Interestingly, the area has become a unique wildlife sanctuary, as human activity is limited, allowing various species to thrive in this otherwise tense region.