Code Name Christine Clouet: A Woman in the French Resistance

From page 19:
"...Hitler was preparing to invade England and his soldiers in Brittany readied themselves for the undertaking. Their ignorance surprised us (the local residents). One day a friend was looking through binoculars at the horizon. A German officier came up to her and asked to borrow the glasses- to see the English coast, he said."

"Rowboats from the port were requisitioned for exercises, but the Germans didn't know how to handle them. Under the amused eyes of the local people, they turned round and round, letting the oars drop into the water. The Ile du Chateau was chosen for landing maneuvers, and dummies were set up as targets representing the British. We watched all this through binoculors and enjoyed it enormously."