Regelbau is a type
Regelbau is a type: Regelbau is a type of bunker, or lets say an underground tunnel, built to a certain standard.
During World War II
During World War II : During World War II an innovative coastal defense device, utilizing the sea-side terrain, was devised in order to provide coastal protection against the vulnerability of tanks landing in the vicinity of the region in the absence of natural coastal defenses. The concept was adopted in 1939 in response to possible German invasion in the region. The defenses utilized tubular scaffolding poles in the form of a fence, forming a mesh to catch incoming waves, and in addition, bundles of poles were subm
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