I loved the quote in the Daily Mail article... British prisoners of war captured at Dunkirk, France, in June 1940 walk dejectedly up a hill near a German fortification.
Lazy journalism at its best. If it was a fortification at Dunkirk then, by definition, it had to be an Allied fortification that had been captured by the Germans. Therefore, the quote should make reference to a captured German fortification or a French fortification.
Regards
KR