https://indianpedia.org/index.php?action=history&feed=atom&title=CountermeasureCountermeasure - Revision history2026-07-30T13:57:48ZRevision history for this page on the wikiMediaWiki 1.45.4https://indianpedia.org/index.php?title=Countermeasure&diff=297114&oldid=prev>Davidgoodheart at 04:01, 16 August 20212021-08-16T04:01:37Z<p></p>
<p><b>New page</b></p><div>{{about|weapons|computer security countermeasures|Countermeasure (computer)}}<br />
{{Short description|Action taken to offset another one}}<br />
{{refimprove|date=January 2013}}<br />
[[File:CH-46 Sea Knight; Flares.jpg|thumb|A [[Boeing Vertol CH-46 Sea Knight|CH-46 Sea Knight]] helicopter launches countermeasures (flares and [[Chaff (countermeasure)|chaff]])]]<br />
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[[File:Ávila 24-8-2002.jpg|thumb|Fortification, a passive countermeasure]]<br />
A '''countermeasure''' is a measure or action taken to counter or offset another one. As a general concept it implies precision, and is any technological or tactical solution or system (often for a [[military]] application) designed to prevent an undesirable outcome in the process. The first known use of the term is in 1923.<ref>[http://www.merriam-webster.com/dictionary/countermeasure Merriam-Webster Dictionary] "Countermeasure" defined</ref><br />
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Countermeasures can refer to the following disciplinary spectrum:<br />
* Defense<br />
* Medicine<br />
* Materials engineering<br />
* Electro-magnetic engineering<br />
* Policing<br />
* Information technology<br />
* Law<br />
* [[Diplomatics|Diplomatic]] security<br />
* Pollution prevention<br />
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Defense countermeasures are often subdivided into "active" and "passive" countermeasures.<br />
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==Active==<br />
In military applications, "active" countermeasures which alter the electromagnetic, [[Acoustics|acoustic]] or other signature(s) of a target thereby altering the tracking and sensing behavior of an incoming threat (e.g., [[guided missile]]) are designated '''soft-kill''' measures. Measures that physically counterattack an incoming threat thereby destroying/altering its payload/warhead in such a way that the intended effect on the target is severely impeded, such as [[close-in weapon system]]s, are designated '''hard-kill''' measures. Both types are further described in [[active protection system]]s.<br />
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==Passive==<br />
"Passive" countermeasures include: <br />
* [[Armor]]<br />
* [[Camouflage]]<br />
* [[Fortification]] <br />
* [[Self-sealing fuel tank]]<br />
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==See also==<br />
*[[Anti-aircraft]]<br />
*[[Anti-ballistic missile]]<br />
*[[Electronic countermeasures]]<br />
*[[Flare (countermeasure)]]<br />
*[[Infrared countermeasures]]<br />
*[[Mine countermeasures]]<br />
*[[National Missile Defense]]<br />
*[[Self-defense]]<br />
*[[Strategic Defense Initiative]]<br />
*[[Tactic (method)]]<br />
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==References==<br />
{{reflist}}<br />
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[[Category:Weapons countermeasures]]<br />
[[Category:Strategy]]</div>>Davidgoodheart