Sky's Defence and Security correspondent Alistair Bunkall presents a special podcast looking at the history of the Korean peninsula ahead of the landmark summit between Kim Jong Un and Donald Trump. The division between North and South was merely an artificial boundary designed to keep the peace between two superpowers following the second world war. People across the Korean peninsula will be hoping that the summit can start the process of removing that line from the map for good. #KimTrumpSummit #SkyNews