SINGAPORE — U.S. President Donald Trump announced that he would hold a second summit with North Korean leader Kim Jong Un in Vietnam on Feb. 27-28. “Our hostages have come home, nuclear testing has stopped, and there has not been a missile launch in more than 15 months. If I had not been elected president of the United States, we would right now, in my opinion, be in a major war with North Korea,” Trump said in his State of the Union address in Washington late Tuesday. “Much work remains to be done, but my relationship with Kim Jong Un is a good one.” Vietnam, which opened up its economy under Doi Moi reforms in the 1980s, has also been touted by the U.S. as a possible model for Pyongyang to follow. The country emerged as a likely host after Secretary of State Mike Pompeo visited last July, shortly after the first Trump-Kim summit in Singapore. Pompeo lauded the “once-unimaginable prosperity and partnership” between Vietnam and the U.S., before turning to North Korea.