<Ul> <Li> Hwasong missile tests </Li> </Ul> <Li> Hwasong missile tests </Li> <P> The Korean Demilitarised Zone (DMZ; Chosŏn'gŭl / Hangul: 한반도 비무장 지대; Hanja: 韓 半島 非 武裝 地帶) is a strip of land running across the Korean Peninsula . It is established by the provisions of the Korean Armistice Agreement to serve as a buffer zone between North Korea and South Korea . The demilitarized zone (DMZ) is a border barrier that divides the Korean Peninsula roughly in half . It was created by agreement between North Korea, China and the United Nations in 1953 . The DMZ is 250 kilometres (160 miles) long, and about 4 kilometres (2.5 miles) wide . </P> <P> Within the DMZ is a meeting point between the two nations in the small Joint Security Area (JSA) near the western end of the zone, where negotiations take place . There have been various incidents in and around the DMZ, with military and civilian casualties on both sides . </P>

How long is the border between north korea and south korea