From the website:

"After the fall of France in the summer of 1940, Great Britain was faced with the possibility of a German invasion. While most of the fighting was done in the skys over Britain, a ground deception program under the Command of Colonel John Turner helped to contribute to to Britain's eventual victory in the Battle of Britain."

http://history.acusd.edu/gen/WW2Timeline/britain.html

Judging by the posts I've read, I think it's safe to say there are a fair amount of Brits reading this forum. As a Yank, my hat is off to your Fathers and Granddads. They were masters of deception and subterfuge. Crafty lads those Brits... Amazing the things they did to trick the Gerries. They have always had a fine reputation in the intelligence field.