THAAD (Terminal High Altitude Area Defense) systems during his presidential campaign and called for more peace talks engaging with North Korea. As of late July, following North Korea's latest missile launch and increasingly aggressive actions, Moon asked the U.S. permission to build up its domestic defense systems and temporarily set up a full THAAD system. Moon met with Kim Jong-un, Chairman of the Workers' Party of Korea, on April 27, 2018. The inter-Korean rapprochement arouses broad enthusiasm among the South Korean population: Moon Jae-in's popularity reached 68% in April 2018. Kim and Moon met again on May 26. The second meeting was also at the DMZ, this time on the North Korean side of the Panmunjom village. The meeting took two hours. The meeting had not been publicly announced beforehand. The meeting was largely centered around the cancelled summit with Donald Trump. In September 2018, Moon Jae-in visited Pyongyang in the September 2018 inter-Korean summit. He and 150 delegates—including prominent figures in business, culture, and religion—flew to the Sunan Airport in Pyongyang and met with Kim Jong-un. The two Korean leaders announced an agreement to decrease hostilities on the DMZ, further joint-economic projects, and open North Korean weapons facilities to international experts. The leaders also gave a speech to 150,000 North Korean citizens in the Rungrado 1st of May Stadium with themes of unification, lasting peace, and friendship. Moon also climbed Mount Paektu with Kim, which had been a "long unfulfilled dream" for him. And Moon was called "Kim Jong Un's Top Spokesman" by Bloomberg News. In October 2018, Moon visited Europe and lobbied for reconciliation with North Korea during the tour. In March 2019, U.N. panel accused South Korea of violating sanctions by not notifying the Security Council about its deliveries of petroleum products for use at inter-Korean joint liaison office. Also in the Annex of the Updated Guidance on Addressing North Korea’s Illicit Shipping Practices, issued from United States Department of the Treasury, a ship of South Korea was listed as that believed to have engaged in ship-to-ship transfers with North Korean tankers. In January 2020, Moon was still serious about inter-Korean cooperation. However, on June 16, North Korea blew up an inter-Korean joint liaison office. On September 23, as video speech at 75th Session of United Nations General Assembly, Moon mentioned about his hope that "the UN and the international community provide support so that we can