I remember back when the Berlin wall came down, the Greens wanted to preserve the area the border fences used as a permanent national park, as a green space. it looks like the South Koreans liked that idea. The DMZ is 4 KM (about 2 1/2 miles) wide. The South Korean army maintained an exclusion zone even wider. It has become a sort of nature preserve by accident, and the South Koreans have decided the area is going to remain a nature preserve if (they say when) unification ever happens. Much of the former military exclusion zone has been given over to the Ministry of the Environment, and there are trails and nature parks (and war memorials and observation decks to look into North Korea) all along the DMZ. Anyway, they have a bunch of fun things to do in the war zone. The area is a home to all kinds of protected wildlife. You think after everything settles down, they should keep it as a nature preserve?