North Korea has revised its constitution to define its territory as bordering South Korea  and remove references to reunification, according to a draft of the text reviewed by Reuters, codifying leader Kim Jong Un’s push to treat the two Koreas as separate states. The revision, believed to have been adopted at a March meeting of the Supreme People’s Assembly, Pyongyang’s rubber-stamp legislature, marks the first time North Korea has added a territorial clause to its constitution, Lee Jung-chul,