The whole of South Korea stood still for the moment the leaders shook hands on both sides of the border in the demilitarized zone that divides the countries. It was an apparently unscripted moment during a highly choreographed sequence of events.
Few would have predicted a development like this as North Korea had escalated its nuclear provocations through 2017. The rapprochement began in January when Chairman Kim suggested he was "open to dialogue" with South Korea. The following month the two countries marched under one flag at the opening ceremony of the Winter Olympics.