Secret Underground Cities - Britain's Underground Defence Fac

Secret Underground Cities - Britain's Underground Defence Factory & Storage Sites in WW2



Pen & Sword Publishing 2003, 156 pagesWhen war seemed inevitable in the late 1930's, a number of huge,complex ammunition depots were built underground. In 1940 work started on a series of vast underground aircraft engine factories. Further underground repositories were also built in western England and the remotest parts of Wales to protect the nation's cultural treasures.