What was the rescue at Dunkirk and why was It a morale boost for the allies?

The rescue at Dunkirk, known as Operation Dynamo, took place between May 26 and June 4, 1940, during World War II, when Allied forces were trapped by German troops on the beaches of Dunkirk, France. Over 338,000 British and Allied soldiers were evacuated to safety across the English Channel, using a makeshift fleet of military and civilian vessels. This successful evacuation was a significant morale boost for the Allies as it demonstrated their resilience and ability to regroup in the face of adversity, allowing them to continue fighting against Nazi Germany. It fostered a sense of unity and hope, reinforcing the belief that victory was still achievable.