Lager Helgoland was a labour camp on Alderney in the Channel Islands, named after the Frisian Island of Heligoland (in German, Helgoland), formerly a Danish and then British possession located 46 kilometres (29 mi) off the German North Sea coastline and belonging to Germany since 1890.
700 workers died in the Alderney camps and in shipping moving them to or from the Island (out of a total inmate population of about 6,000).
It was built in January 1942 and was used by the Nazi Organisation Todt, a forced labour programme, to house the labourers to build fortifications including bunkers, gun emplacements, air-raid shelters, and tunnels.
[3] Norderney camp housed European (usually Eastern but including Republican) and Russian enforced labourers.
Lager Borkum was used for German technicians and volunteers from different countries of Europe.