(Bloomberg) -- Whatever the state of Kim Jong Un’s health, he has already put North Korea in its strongest position to resist U.S. pressure in decades.Eight years after Kim filled the power vacuum left by the death of his reclusive father, Kim Jong Il, North Korea is more secure and less isolated. The 36-year-old supreme leader has achieved two key marks of legitimacy long sought by his predecessors: a nuclear arsenal that can credibly deter an American attack and a personal relationship with the U.S. president, including three face-to-face meetings with Donald Trump.While North Korea is still among the world’s most impoverished nations, living standards are rising for the ruling elite in Pyongyang. Kim has shown he can endure crushing economic sanctions, illustrated by a United Nations report published Tuesday accusing the regime of widespread evasion. Moreover, the Kim dynasty holds a renewed pledge of strategic support from its ultimate guarantor, China.“The country has pole-vaulted
