# Alert state

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> Source: https://en.wikipedia.org/wiki/Alert_state
> Source revision: 1291360915
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{{Short description|Military forces on forms of threat}}
{{For|the American hardcore punk group|State of Alert}}
{{Redirect|Threat analysis|the process of identifying potential threats to computer systems|Threat model}}

An '''alert state''' or '''state of alert''' is an indication of the state of readiness of the [armed force](/source/armed_force)s for military action or a [state](/source/Sovereign_state) against natural disasters, [terrorism](/source/terrorism) or military attack. The term frequently used is "on high alert".<ref>[https://abcnews.go.com/International/story?id=82296&page=1 U.S. Military on 'High Alert'] [Retrieved 2013 April 12]</ref> Examples scales indicating alert state are the [DEFCON](/source/DEFCON) levels of the US military,<ref>R. van Dijk [https://books.google.com/books?id=rUdmyzkw9q4C&dq=DEFCON++alert+status+levels&pg=PA237 Encyclopedia of the Cold War, Volume 1]</ref> South Korea's "Jindogae" system,<ref>{{cite news|work=Dong-A Ilbo|title=NK fires shells onto S. Korean island, kills 2 Marines |url=http://english.donga.com/srv/service.php3?bicode=050000&biid=2010112430388|date=24 November 2010|access-date=30 November 2010}}</ref> and the [UK Threat Levels](/source/UK_Threat_Levels).<ref>[Home Office](/source/Home_Office) [https://www.gov.uk/terrorism-national-emergency Terrorism and national emergencies] [Retrieved 2013 April 12] {{webarchive|url=https://web.archive.org/web/20130729040409/https://www.gov.uk/terrorism-national-emergency |date=29 July 2013}}</ref> High alert states are synonymous with "red alert".<ref>{{wikt-inline|red alert}}</ref>

==See also==
{{div col|content=
* [Combat readiness](/source/Combat_readiness)
* [EMERGCON](/source/EMERGCON)
* [FPCON](/source/FPCON)
* [INFOCON](/source/INFOCON)
* [LERTCON](/source/LERTCON)
* [REDCON](/source/REDCON)
* [Situation awareness](/source/Situation_awareness)
* [Torino scale](/source/Torino_scale)
* [COGCON](/source/COGCON)
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30em
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'''Historic/Defunct:'''
{{div col|content=
* [United States color-coded war plans](/source/United_States_color-coded_war_plans)
* [HANDEL](/source/HANDEL)
* [Homeland Security Advisory System](/source/Homeland_Security_Advisory_System)
* [BIKINI state](/source/BIKINI_state)
* [CONELRAD](/source/CONELRAD)
* [Four-minute warning](/source/Four-minute_warning)
* [Preparing for Emergencies](/source/Preparing_for_Emergencies)
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}}

==References==
{{reflist|30em}}

Category:Military life
Category:Alert measurement systems

{{mil-stub}}

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Adapted from the Wikipedia article [Alert state](https://en.wikipedia.org/wiki/Alert_state) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Alert_state?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.