On the evening of May 26, 1940, Prime Minister Winston Churchill gave the order for Operation Dynamo, the evacuation of British troops from Dunkirk. Over the course of a pivotal week, ships from the Royal Navy, the Merchant Navy, France, Belgium and the Netherlands as well as the famous Little Ships evacuated almost 340,000 Allied troops from Dunkirk and brought them back to Britain. Telling the story of how the Allies managed the Dunkirk miracle and the Germans let victory slip through their fingers, Henry Buckton also discusses Operation Ariel and the other evacuations that came after.