The Battle of Dunkirk was a battle in the Second World War

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

 between the Allies

Allies of World War II

The Allies of World War II were the countries that opposed the Axis powers during the Second World War . Former Axis states contributing to the Allied victory are not considered Allied states...

 and Germany. A part of the Battle of France

Battle of France

In the Second World War, the Battle of France was the German invasion of France and the Low Countries, beginning on 10 May 1940, which ended the Phoney War. The battle consisted of two main operations. In the first, Fall Gelb , German armoured units pushed through the Ardennes, to cut off and...

 on the Western Front

Western Front (World War II)

The Western Front of the European Theatre of World War II encompassed, Denmark, Norway, Luxembourg, Belgium, the Netherlands, France, and West Germany. The Western Front was marked by two phases of large-scale ground combat operations...

, the Battle of Dunkirk was the defence and evacuation of British and allied forces in Europe from 26 May–4 June 1940.

After the Phoney War, the Battle of France began in earnest on 10 May 1940. To the east, the German Army Group B

Army Group B

Army Group B was the name of three different German Army Groups that saw action during World War II.-Battle for France:The first was involved in the Western Campaign in 1940 in Belgium and the Netherlands which was to be aimed to conquer the Maas bridges after the German airborne actions in Rotterdam...

 invaded and subdued the Netherlands and advanced westward through Belgium.