Watch World War II: The Blitz on Cologne (2018) Official Trailer

This documentary is a dedicated yet moving account of Operation Millennium, the first 1,000 bomber raid by the R.A.F in World War Two. It was an extraordinary feat of organization involving 1,048 bombers and 6,000 aircrew and 53 British airfields. The result; an awesome and unprecedented bombing raid which ultimately reduced the population of Cologne by ninety five percent.