Chong Wa Dae core 11 revealed that the leaders of the Republic of Korea will call the hotline in the near future, but the specific time is not yet clear. Chong Wa Dae has said that the head of the Korean and DPRK may make a call through the hotline after the announcement of the DPRK US leaders meeting schedule. At 9:30 a.m. local time (8:30 in Beijing time) on April 27th, Kim Jeong-eun, the supreme leader of the DPRK, crossed the military boundary from panmunk and shook hands with the president of South Korea to meet his first meeting. In April 20th, the South Korean summit hotline was opened, and the two staff members made a trial call on the same day. The hotline is connected to the Korean presidential palace Chong Wa Dae and the State Council of Korea. The Korean and Korean staff members made a call of 4 minutes and 19 seconds on the same day at 15:41 (South Korea time), and the telephone connection was smooth and the call was clear. When asked when the South Korean government would know when the US leaders met in Singapore, the person said that President Trump knew it after the news was announced by the social network. The person also said that the ROK hopes that the summit talks between the DPRK and the US will take place as soon as possible, and that the venue should be determined by the three parties. President Trump told social media twitter on the morning of 10 local time that his meeting with the top leader of the DPRK, Kim Jeong-eun, was scheduled to be held in Singapore in June 12th. This will be the first meeting between the US and the DPRK leaders. Trump wrote in the tweets, the US and DPRK leaders meeting, which is highly concerned, will be held in Singapore in December June. Kim Jeong-eun and I will strive to turn this meeting into an important moment for world peace. Pompeio, the Secretary of the United States, went to Korea 8 days this month to finalize the time and place of the meeting of the US and the DPRK, and returned three American citizens released by the DPRK. On the morning of 10, Trump went to Andrews air force base to welcome three American citizens released by the DPRK.