North Korean leader Kim Jong Un threatened to use nuclear weapons and destroy South Korea permanently if provoked, state media reported on Friday, after the South’s leader warned that Kim’s regime would collapse if he attempted to use nuclear arms. The exchange of such rhetoric between the rival Koreas is nothing new, but the latest comments come during heightened animosities over the North’s recent disclosure of a nuclear facility and its continuation of missile tests. Next week, observers say North Korea’s rubber-stamp parliament is expected to constitutionally declare a hostile “two-state” system on the Korean Peninsula to formally reject reconciliation with South Korea and codify new national borders. During a visit to a special operation forces unit on Wednesday, Kim said his military “would use without hesitation all the offensive forces it possesses, including nuclear weapons”, if South Korea attempts to use armed forces encroaching upon the sovereignty of North Korea, according to the North’s official Korean Central News Agency.“If such a situation comes, the permanent existence of Seoul and the Republic of Korea would …