During the night from the 20th to the 21st of August 1968, Czechoslovak Radio opened one of the most significant chapters in its history. The free broadcasting it managed to operate for several days of August 1968 despite the country’s occupation by the Warsaw Pact armies, was of exceptional importance. The large team of radio workers maintained contact between the country’s legitimate leaders and its population, helping avert chaos and likely preventing greater casualties. These are their stories…