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Concertina wire

Triple concertina wire fence
Baled concertina wire prior to deployment

Concertina wire or Dannert wire[1] is a type of barbed wire or razor wire that is formed in large coils which can be expanded like a concertina. In conjunction with plain barbed wire (and/or razor wire/tape) and steel pickets, it is most often used to form military-style wire obstacles. It is also used in non-military settings, such as when used in prison barriers, detention camps, riot control, or at international borders. During World War I, soldiers manufactured concertina wire themselves, using ordinary barbed wire. Today, it is factory made.

  1. ^ "Dannert Wire". Online Thesaurus. English Heritage. Archived from the original on 18 July 2011. Retrieved 18 September 2010.

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