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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 .
Migrants cross the razor fence placed by elements of the Texas National Guard on the banks of the Rio Grande, in El Paso, Texas, US. border with Ciudad Juarez, Chihuahua state, Mexico, on December ...
Razor wire—long-barb type on top of a chain link privacy-fence surrounding a utility power sub-station. Barbed tape or razor wire is a mesh of metal strips with sharp edges whose purpose is to prevent trespassing by humans. The term "razor wire", through long usage, has generally been used to describe barbed tape products.
Barbed wire, also known as barb wire, is a type of steel fencing wire constructed with sharp edges or points arranged at intervals along the strands. Its primary use is the construction of inexpensive fences , and it is also used as a security measure atop walls surrounding property.
The effectiveness of any wire obstacle is greatly increased by planting anti-tank and blast antipersonnel mines in and around it. Additionally, connecting bounding anti-personnel mines (e.g. the PROM-1) to the obstacle with tripwires has the effect of booby-trapping the obstacle itself, hindering attempts to clear it.
Since the original concertainer, HESCO has developed specialized variants: MIL is the basic earth-colored unit for military use. Example dimensions of typical configurations are 1.4 m × 1.1 m × 9.8 m (4.6 ft × 3.6 ft × 32.2 ft) to 2.1 m × 1.5 m × 30 m (6.9 ft × 4.9 ft × 98.4 ft). [11]