With US-NKorea summit over, US envoy to brief Asia allies

President Donald Trump meets with North Korean leader Kim Jong Un on Sentosa Island, Tuesday, June 12, 2018, in Singapore. (AP Photo/Evan Vucci)

U.S. President Donald Trump holds up the document that he and North Korea leader Kim Jong Un just signed at the Capella resort on Sentosa Island Tuesday, June 12, 2018 in Singapore. The most tangible outcome of the summit between President Donald Trump and North Korean leader Kim Jong Un seems to be a commitment to recover the remains of U.S. military personnel missing in action and presumed dead from the Korean War. In a joint statement signed by the leaders Tuesday, the countries committed to the recovery of the remains and the immediate repatriation of those already identified. (AP Photo/Evan Vucci)

SINGAPORE — The top U.S. diplomat is jetting to South Korea to brief the country’s president as America’s Asian allies try to parse the implications of the extraordinary nuclear summit in Singapore between President Donald Trump and North Korea’s Kim Jong Un.