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A tripwire is a passive triggering mechanism. Typically, a wire or cord is attached to a device for detecting or reacting to physical movement. Military applications
It consists of tripwire around the area, linked to one or more flares. When the tripwire is triggered, as by someone unsuspectingly disturbing it, the flare is activated and begins burning. The light from the flare simultaneously warns that the perimeter may have been breached and also gives light for investigating. [2]
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.
Several such coils with a few stakes to secure them in place are just as effective as an ordinary barbed wire fence, which must be built by driving stakes and running multiple wires between them. A platoon of soldiers can deploy a single concertina fence at a rate of about a kilometre (5 ⁄ 8 mile) per hour. Such an obstacle is not very ...
The outer fence was often located very close to the actual border. A further obstacle was added by placing short wooden anchor posts about 2 metres (6.6 ft) outwards from both fences. Barbed wire was strung between them to form a V-shape to hinder lateral movement by escapees. In some low-risk areas, only a single fence was installed. [20]
A tripwire force (sometimes called a glass plate) is a strategic approach in deterrence theory. The tripwire force is a military force smaller than that of a potential adversary, which is designed to signal the defending side's commitment to an armed response to future aggression without triggering a security spiral .
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The tripwire can be set to detonate via both pressure or pressure release. The POMZ-2M has a threaded fuze well, while the earlier POMZ-2 was unthreaded and the fuze and igniter would sometimes fall out if the mine was disturbed.