The Korean DMZ (Demilitarized Zone) is a buffer zone that separates North Korea and South Korea. Established in 1953 after the Korean War, it stretches approximately 250 kilometers (160 miles) across the Korean Peninsula. The DMZ is about 4 kilometers (2.5 miles) wide 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 sides maintain troops and surveillance equipment nearby. The area is also known for its unique ecosystem, as human activity is limited, allowing various wildlife to thrive in this otherwise tense region.