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.