Prime Minister David Cameron has said the UK should "always be grateful to and remember" the people who evacuated thousands of troops from Dunkirk in 1940.
More than 50 vessels have sailed to France today to commemorate the 70th anniversary of Operation Dynamo.
During the evacuation, 900 naval and civilian ships, including fishing boats and pleasure craft, rescued more than 300,000 Allied soldiers from the beaches of Dunkirk.
The PM said:
The heroism and valour shown by the people who went to the rescue of the thousands of troops stranded on the beaches of Dunkirk 70 years ago is a testament to the courage and endeavour of British people.
Our country should always be grateful to and remember all those who were involved in the evacuation and our thoughts go to all those who didn’t make it home. We can all be very proud of the ‘Little Ships’ of Dunkirk and the commemorative events this week are a fitting reminder.