The Second World War left behind many mysteries and riddles, the answers to which have not yet been received. One of the controversial issues remains the so-called "miracle of Dunkirk", which historians have been arguing about for more than eight decades. Some of the circumstances of this most important episode of the Second World War still remain in question. The main ones are: why were the tank divisions stopped at the most crucial moment? Ultimately, Dunkirk went down in history as one of the most terrible battles, which both the British and the Germans could regard as their success. The Allies did not expect to be able to take out so many people, while the Germans finally defeated the French troops who were unable to resist and forced France to surrender.