It's been revealed that the top security advisors of South Korea, the U.S. and Japan, met over the weekend in San Francisco to discuss the upcoming talks with North Korea.<br />For more on this, we have on the line Kwon Jang-ho, who is at the Unification Ministry.<br />Jang-ho, <br /><br /> Good morning, Mark.<br />A Blue House spokesperson informed reporters just a couple of hours ago that Chung Eui-yong, Seoul's national security advisor, had flown to San Francisco on Saturday, and held a closed door meeting with his U.S. and Japanese counterparts, H.R. McMaster and Shotaro Yachi.<br /> They were said to have discussed the denuclearization of the Korean peninsula, and also coordinate efforts in preparing for the landmark inter-Korean summit in April, and the U.S.-North Korea summit in May.<br />The spokesperson said the three advisors also agreed to, quote, "not repeat their past failures."<br /><br /> This is the latest in a number of trips that has been taken by Chung and South Korean officials to gear up for these talks.<br />It's already the second time Chung has visited the U.S. since he acted as a special envoy and met with North Korean leader, Kim Jong-un in Pyongyang earlier this month.<br />He's also had trips to China and Russia to brief them on the situation.<br /> Another special envoy visited Japan on a similar agenda.<br />And earlier last week, Seoul's foreign minister, Kang Kyung-wha met with her U.S. and Japanese counterparts in Washington.<br /><br />It's a result of the surprising and sudden way U.S. President Trump accepted Kim Jong-un's invitation to meet, and with so much to prepare for such an unprecedented event in such a short space of time, we can expect more of such meetings in the coming weeks.<br />Back to you, Mark. <br />