Posing as businessmen, Sun men Alex Peake and Simon Jones spent a week inside the poverty-stricken state, ruled by the most oppressive regime on the planet.
They got visas through a contact in China working for British-based Lupine Travel. They even set up fake business addresses and email accounts for the applications — although at no point did they tell Lupine Travel or anybody else on the trip they were Sun journalists.
They entered by crossing the border from China into the last Stalinist state on the planet.
At the checkpoint on the North Korean side, the pair were ushered off their coach by gun-toting soldiers in peaked caps and khaki uniforms bearing the Communist badge.
But they were let in... and were about to get an unprecedented glimpse behind the world’s last “iron curtain”.