The demarcation line crossing the Korean Peninsula is an extensive area, which is 248Km long and 64-million pyeong size. In other words, it is DMZ. DMZ is a neutral zone where has no military tension as the word means. But collision and tension have been continued in DMZ for last 50 years. DMZ is not only value for boundless development and preservation but also symbol of division and unification. Moreover, it is the contradictory place where has possibility of war as well as discontinue a war.