………. ………. ………. ………. ………. ………. ………. ………. ………. ………. ………. ………. ………. ………. ………. ………. ………. ………. UNITED NATIONS — Two years ago, Donald Trump used the spotlight of the annual U.N. conclave of world leaders to insult North Korea’s leader (“Rocket Man”) and threaten his nation with annihilation. Last year, Trump basked in the glow of diplomacy that suggested a genuine chance for detente with the North, a surreal notion in a corner of the world that has been in a technical state of war since the 1950s. This year? North Korea warranted no more than a passing mention in Trump’s address, and, aside from his hints to reporters of another possible summit with leader Kim Jong Un, the issue has been largely overshadowed by other standoffs and scandals: Iran, for instance, and talk of Trump’s impeachment. The North, for its part, is reportedly sending only an ambassador, not its foreign minister, to take the General Assembly stage Monday — well after most world leaders have gone home. ADVERTISEMENTSkip ………………………………………………………. The shift from dramatic threats to high-stakes diplomacy to virtual afterthought at the United Nations reflects the strange, muddled state of affairs on the Korean Peninsula. North Korea…