Concertina wire

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Concertina_wire.png
A sketch of a typical concertina wire obstacle

Concertina wire is a type of barbed wire or razor wire that is formed in large coils which can be expanded like a concertina. Each coil actually consists of two oppositely wound helices which support each other against crushing whilst allowing easy longitudinal movement. In conjunction with plain barbed wire and steel pickets, it is used to form military wire obstacles. During World War I soldiers manufactured concertina wire themselves, using ordinary barbed wire. Today it is factory made.

Concertina wire packs flat for ease of transport, but can then be deployed as an obstacle much more quickly than ordinary barbed wire.

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US_soldiers_laying_concertina_wire.JPG
US soldiers laying concertina wire on an exercise
A platoon of soldiers can deploy a single concertina fence at a rate of about a kilometre per hour. Such an obstacle is not very effective by itself, and concertinas are normally built up into more elaborate patterns as time permits.


See also

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