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Barbed wire, also known as barb wire or bob 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 barbed wire strands on the top of the signal fence activated an alarm when pulled or cut, alerting the border guards. The signal or "hinterland" fence ( Signalzaun ) was the first of the border fences, dividing the Sperrzone from the more heavily guarded protective strip ( Schutzstreifen ) adjoining the actual border.
An early handmade specimen of Glidden's "The Winner" on display at the Barbed Wire History Museum in DeKalb, Illinois.. The land where the Glidden House stands once held a log structure, which Glidden lived in when he first came to DeKalb at the beckoning of his cousin Russell Huntley. [3]
The Green Zone was completely surrounded by high concrete blast walls, T-Walls and barbed wire fences with access only available through a handful of entry control points, all controlled by Coalition troops. [7] It is this security that made the Green Zone the safest area of Baghdad, [7] and gave its name colloquially as "the bubble". [8]
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.
A basic wire line could be created by draping several strands of barbed wire between wooden posts driven into the ground. Loose lines of wire can be more effective in entangling than tight ones, and it was common to use the coils of barbed wire as delivered only partially stretched out, called concertina wire .
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A distinctive 'barbed wire' pottery decoration is thought to have migrated through central Italy first. The pattern of movements was diverse and complicated, along the Atlantic coast and the northern Mediterranean coast, and sometimes also far inland.