What happen When the British and French retreated to the French side of the English Channel the British did what?

When the British and French retreated to the French side of the English Channel during World War II, the British launched Operation Dynamo, which aimed to evacuate their troops from Dunkirk. Over the course of nine days in late May and early June 1940, hundreds of thousands of Allied soldiers were evacuated by a makeshift fleet of naval vessels and civilian boats. This operation successfully rescued around 338,000 troops, allowing them to escape and regroup for future battles, despite the loss of equipment and territory.