The world's most elusive country, Billy's 12th lyric, and the first of four on Korea. Dr Sojin Lim from The University of Central Lancashire takes Katie and Tom back to the 1950s to find out why this tiny Asian peninsular was split in two and how North Korea became North Korea. It's a story of escape, state-sanctioned haircuts, coercion, and global powers gently flexing their muscles, a fire bubbling within.

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