prevent the shipment of nuclear materials to North Korea. In November 2010, the South Korean Unification Ministry officially declared the Sunshine Policy a failure, thus bringing the policy to an end. Return to the Sunshine Policy: 2017–present Moon Jae-in was elected President of South Korea in 2017, promising to return South Korea to the Sunshine Policy. 2018 and 2019 saw a rapid acceleration in talks between the two countries, seeking inter-Korean dialogue, denuclearization and demilitarization, and eventual unification of the peninsula. On 27 April 2018, the first of three summits took place between Moon and Kim in the South Korean side of the Joint Security Area inside of the Peace House. The summit ended with both countries pledging to work towards complete denuclearization of the Korean Peninsula. They also vowed to declare an official end to the Korean War within a year. The Panmunjom Declaration was signed by leaders of both countries, which laid out the goals of inter-Korean dialogue and peace negotiations. Both countries called for the end of longstanding military activities in the region of the Korean border and an eventual reunification of the peninsula. Additionally, the leaders agreed to work together to connect and modernize their railway systems. Moon and Kim met a second time on 26 May, this time on the North Korean side of the Joint Security Area in the Unification Pavilion. This meeting was unannounced to the media prior, but focused on discussions around Kim's upcoming summit with United States President Donald Trump. The summit also resulted on an agreement to reopen a jointly operated liaison office in Kaesong that the South had shut down in February 2016 after a North Korean nuclear test. The office was operational from September 2018 to June 2020 and held many inter-Korean talks, until the building was demolished by North Korea amid rising tensions. From 18–21 September, delegations from both countries met in Pyongyang, North Korea for the third and final summit between Moon and Kim. The summit resulted in agreement in a number of areas, including the removal of land mines and guard posts along areas of the Joint Security Area. North Korea agreed to dismantle their nuclear complex in the presence of international experts if the U.S. takes correlative action, although this never occurred. Moon became the first South Korean leader to give a public address in North Korea. South Korea announced that it would not