2018–19 Korean peace process

The 2018–19 Korean peace process was initiated to resolve the long-running Korean conflict and denuclearize Korea. International concerns about North Korea's nuclear weapons came to a head in 2017, when they posed a direct threat to the United States. At the same time, Moon Jae-in was elected president of South Korea with the promise of returning to the Sunshine Policy, favoring good relations with North Korea. A series of summits were held between North Korea's Kim Jong Un, South Korea's Moon, and Donald Trump of the United States. Trump became the first sitting US President to meet a North Korean leader and to enter North Korean territory. Kim became the first North Korean leader to enter South Korean territory. Moon became the first South Korean President to give a speech in North Korea. In parallel to this, a number of cultural exchanges began. Tensions were lowered on both sides of the DMZ.

The summits failed to make substantial progress towards denuclearization or a peace treaty. In October 2019, talks in Sweden began between US and North Korean negotiating teams, but broke down after one day. Subsequently, relations deteriorated, though dialogue continued.