post #700900

Barbed wire is a type of steel fencing wire constructed with sharp edges or points arranged at intervals along the strand(s). It is used to construct inexpensive fences and is used atop walls surrounding secured property. It is also a major feature of the fortifications in trench warfare (as a wire obstacle).

This tag also covers razor wire which looks different but serves the same purpose.

External:

• Wikipedia - Barbed wire