The German army couldn't keep Bernard Jordan out of Normandy, so one wonders why the staff of The Pines nursing home in Hove, England thought they would do any better 70 years later.
The post title refers to this portion of a speech by Mr. Jordan's countryman Winston Churchill, which Mr. Jordan has apparently listened to and taken to heart.
Edited to add:
The nursing home staff says that Mr. Jordan was not prevented from going, but he hadn't told anyone that he was, so they reported him missing when he didn't come back at night. In fact, they had tried to get him on an arranged trip but were unable to do so, and were pleased to hear he had attended and was safe. Good for them, and my apologies for mocking them!