According to the Wall Street journal, Andouble said before his visit that he wanted to tell Trump that the agreement with the DPRK should simultaneously eliminate the threat of intercontinental missiles and range coverage of Japans medium and short range missiles against the United States. The Japanese government does not want the agreement reached between Trump and DPRK to protect the interests of the United States and expose Japan to the shadow of missile strikes. According to Japans daily news, three countries in Japan, the United States and South Korea are negotiating to request the DPRK to abolish the nuclear development plan by 2020. According to Hongkongs South China Morning Post, South Koreas senior official said South Korea will ask the DPRK to freeze its missile program in the north and South Summit, disclosing its nuclear capability and allowing nuclear inspectors to enter, in exchange for Seouls political and economic concessions. According to the US political website, Trump told Andouble on 17 th that the Korean and Korean dynasties were discussing the end of the war, and he wished this discussion. He boasts at the same time, if we dont have us, especially if I dont have me - I think you have to say that they wont discuss this problem (end the war state). During his talks with Andouble, Trump also thanked Xi Jinping for his assistance to the United States on the Korean issue, saying that China now has substantial reductions in its export to the DPRK. Lv Chao, a researcher at the Liaoning Academy of Social Sciences, told the global times that the US Secretary of state went to Pyongyang before the North South Summit, not the established procedure. The US approach shows a certain urgency and is anxious to make some progress, and Japan is more urgent than the United States because it has been afraid of being thrown down. In contrast, from the most high-level talks between China and the DPRK to minister Song Taos recent visit to the DPRK, we can see that the exchanges between China and the DPRK are very deep, very leisurely and smoothly.