This had to do with the aggressive and successful campaign of German tourists to keep Borkum free from Jewish visitors, as celebrated in the antisemitic "Borkum-Lied".
Sellega seoti agressiivne ja edukas Saksa turistide kampaania, et Borkum juudi külastajatest vabana hoida, nagu ülistab antisemiitlik "Borkum-Lied".