Apart from a few units the majority of troops on The Westwall were young adults, old men and underequipped volunteers/conscripts from occupied nations, as horrifying as it must have been to attack that for the most part they were taking on the worst portions of The German Army with almost all The Panzers far in reserve, incase Normandy was a feint for attacking Calais. Is it really that much of a victory for the old man to have killed a boy or other old man that he should want to piss on the place they all died? I could see if it was at the site where The Fuhrerbunker sat or Berchtesgarten. The Veterans from North Africa used to meet up every few years without issue, though guess the majority would be British and German.