Question

What was the "Miracle at Dunkirk", and Hitler's suprising order that helped make it possible?

Answer 1

The Miracle was the ability of the British to evacuate almost all the soldiers of their expeditionary corp. The order concerned the halting of the German advancing troops allowing the evacuation of the British.

Explanation:

In 1940, after an incredibly quick advance of the German troops into France, the majority of the British troops and some contingents of the French army were bottled up in Dunkirk with their back to the sea.
In a strange twist of fate Hitler gave order to his troops to stop the chase and not to destroy the allied forces.
With an incredible display of strength and courage the entire British fleet and a lot of civilian boats managed to evacuate the soldiers trapped on the beach of Dunkirk and take them safely to England.