In August 2018 reunions of families divided since the Korean War took place at Mount Kumgang in North Korea. In September, at a summit with Moon in Pyongyang, Kim agreed to dismantle North Korea's nuclear weapons facilities if the United States took reciprocal action. In Pyongyang, an agreement titled the "Pyongyang Joint Declaration of September 2018" was signed by both Korean leaders The agreement calls for the removal of landmines, guard posts, weapons, and personnel in the JSA from both sides of the North-South Korean border. They also agreed that they would establish buffer zones on their borders to prevent clashes. Moon became the first South Korean leader to give a speech to the North Korean public when he addressed 150,000 spectators at the Arirang Festival on 19 September. Also during the September 2018 summit, military leaders from both countries signed an Agreement on Reconciliation, Non-Aggression, Exchanges and Cooperation" (a.k.a. "the Basic Agreement") to help ensure less military tension between both countries and greater arms control.