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North Korean leader Kim Jong Un pledged to permanently shut down the Tongchang-ri missile launch and engine testing facilities with independent inspectors present. Kim also said he is prepared to permanently shut down his nuclear production facility at Yongbyon, but only if the U.S. takes "reciprocal steps" in the spirit of the June 12 agreement signed by U.S. President Donald Trump.
It was unclear what those "reciprocal steps" would be.
Trump excitedly responded to the agreement in a pair of tweets late Tuesday. He said that Kim had allowed nuclear inspections "subject to final negotiations" -- an agreement not mentioned by the Koreas Wednesday -- and highlighted that the two Koreas will also submit a bid to host the 2032 Summer Olympics. He did not shed further light on what the U.S.'s reciprocal steps would be either.
Kim Jong Un has agreed to allow Nuclear inspections, subject to final negotiations, and to permanently dismantle a test site and launch pad in the presence of international experts. In the meantime there will be no Rocket or Nuclear testing. Hero remains to continue being........— Donald J. Trump (@realDonaldTrump) September 19, 2018
....returned home to the United States. Also, North and South Korea will file a joint bid to host the 2032 Olympics. Very exciting!— Donald J. Trump (@realDonaldTrump) September 19, 2018
Any true denuclearization efforts would require intrusive inspections and extensive verification, experts say.
"The core matter is the removal and storage of existing spent fuel rods when the North purportedly would shut everything down,” Jinwoo Kim, adjunct professor at the Graduate School of Political Studies at Kyonggi University, told ABC News. “Unless shipped out of the country or pried away from North Korea's control, they remain a big problem.”
The Koreas also agreed to work toward easing military tensions on the Korean peninsula, increasing communication and cooperation and facilitating more family reunions.
Kim promised he “will visit Seoul in the near future,” and Moon Jae-in commented Kim would be the first North Korean leader to visit the South.
"This summit contributed in breaking down walls between Koreas -- a real process for both North and South Koreans," John Delury, a North Korea expert at Seoul-based Yonsei University, told ABC News. "People want something new. Obviously Kim coming to Seoul is new."
North Korean Defense Minister No Kwang Chol and South Korean Defense Minister Song Young-moo signed a military agreement outlining steps to disarm the jointly controlled border village of Panmunjom, starting with the removal of landmines, according to The Associated Press.
The joint statement signed by the countries’ military chiefs on Wednesday said the Koreas will aim to remove the mines in the Joint Security Area in the truce village of Panmunjom in October and also remove guard posts from the area.
The second day of summit talks took place Wednesday at Baekhwawon state guesthouse in Pyongyang, North Korea.
The guesthouse is the same location where former South Korean Presidents Kim Dae-jung and Roh Moo-hyun stayed during the inter-Korean summit talks with late North Korean leader Kim Jong Il in 2000 and 2007, respectively.
The South’s delegation’s was served lunch at Okryugwan, a Pyongyang restaurant famous for its cold noodles. Moon was scheduled to visit facilities related to science and technology in and around Pyongyang city Wednesday afternoon. A farewell dinner banquet will follow.
Moon will visit Mount Paektu with Kim Jong Un Thursday morning, South Korea’s presidential office announced. The volcano is considered sacred and Moon said during the April inter-Korean summit it was his longtime dream to go trekking on the mountain.
After the hike, Moon is expected to return to Seoul from Samjiyon Airport.
Moon and his 150-member delegation arrived in Pyongyang on Tuesday, greeted by Kim and his wife with much flag-waving and music followed by a fancy car parade through Pyongyang's streets.
After a closed-door summit, the South’s delegation, including top business executives and musicians, joined Kim and North Korean officials at Pyongyang Grand Theatre for an orchestral performance by the North’s Samjiyon orchestra.
The dinner banquet that followed was amicable throughout the whole three hours, officials said, with it wrapping up past 11 p.m.
ABC News' Soohyun Kim and Liz Sunwoo Kim contributed to this report.